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Finding the Fourth Proportional to 180,542.52, 249,128.51 and 99,949.86

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Solution

The fourth proportional to 180,542.52, 249,128.51 and 99,949.86 is: 137,919.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,542.52 : 249,128.51 = 99,949.86 : x
  2. Step 2: Convert to fraction form
    180,542.52/249,128.51 = 99,949.86/x
  3. Step 3: Cross multiply
    180,542.52x = 249,128.51 × 99,949.86
  4. Step 4: Simplify right side
    180,542.52x = 24,900,359,196.76
  5. Step 5: Solve for x
    x = 24,900,359,196.76/180,542.52
  6. Step 6: Final answer
    x = 137,919.64

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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.