Home / 137,053.08-189,137.40-76,626.27

Finding the Fourth Proportional to 137,053.08, 189,137.40 and 76,626.27

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Solution

The fourth proportional to 137,053.08, 189,137.40 and 76,626.27 is: 105,746.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,053.08 : 189,137.40 = 76,626.27 : x
  2. Step 2: Convert to fraction form
    137,053.08/189,137.40 = 76,626.27/x
  3. Step 3: Cross multiply
    137,053.08x = 189,137.40 × 76,626.27
  4. Step 4: Simplify right side
    137,053.08x = 14,492,893,479.50
  5. Step 5: Solve for x
    x = 14,492,893,479.50/137,053.08
  6. Step 6: Final answer
    x = 105,746.57

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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.