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Finding the Fourth Proportional to 180,508.92, 249,111.50 and 99,945.32

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Solution

The fourth proportional to 180,508.92, 249,111.50 and 99,945.32 is: 137,929.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,508.92 : 249,111.50 = 99,945.32 : x
  2. Step 2: Convert to fraction form
    180,508.92/249,111.50 = 99,945.32/x
  3. Step 3: Cross multiply
    180,508.92x = 249,111.50 × 99,945.32
  4. Step 4: Simplify right side
    180,508.92x = 24,897,526,837.90
  5. Step 5: Solve for x
    x = 24,897,526,837.90/180,508.92
  6. Step 6: Final answer
    x = 137,929.62

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1.5x scale

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.