Home / 149,708.64-206,632.65-98,730.57

Finding the Fourth Proportional to 149,708.64, 206,632.65 and 98,730.57

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Solution

The fourth proportional to 149,708.64, 206,632.65 and 98,730.57 is: 136,271.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,708.64 : 206,632.65 = 98,730.57 : x
  2. Step 2: Convert to fraction form
    149,708.64/206,632.65 = 98,730.57/x
  3. Step 3: Cross multiply
    149,708.64x = 206,632.65 × 98,730.57
  4. Step 4: Simplify right side
    149,708.64x = 20,400,959,315.11
  5. Step 5: Solve for x
    x = 20,400,959,315.11/149,708.64
  6. Step 6: Final answer
    x = 136,271.09

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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.