Home / 137,949,059.72-190,298,465.70-85,718,250.92

Finding the Fourth Proportional to 137,949,059.72, 190,298,465.70 and 85,718,250.92

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Solution

The fourth proportional to 137,949,059.72, 190,298,465.70 and 85,718,250.92 is: 118,246,921.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,949,059.72 : 190,298,465.70 = 85,718,250.92 : x
  2. Step 2: Convert to fraction form
    137,949,059.72/190,298,465.70 = 85,718,250.92/x
  3. Step 3: Cross multiply
    137,949,059.72x = 190,298,465.70 × 85,718,250.92
  4. Step 4: Simplify right side
    137,949,059.72x = 16,312,051,632,563,612
  5. Step 5: Solve for x
    x = 16,312,051,632,563,612/137,949,059.72
  6. Step 6: Final answer
    x = 118,246,921.48

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.