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Finding the Fourth Proportional to 180,989.92, 249,761.32 and 99,317.92

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Solution

The fourth proportional to 180,989.92, 249,761.32 and 99,317.92 is: 137,056.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,989.92 : 249,761.32 = 99,317.92 : x
  2. Step 2: Convert to fraction form
    180,989.92/249,761.32 = 99,317.92/x
  3. Step 3: Cross multiply
    180,989.92x = 249,761.32 × 99,317.92
  4. Step 4: Simplify right side
    180,989.92x = 24,805,774,798.85
  5. Step 5: Solve for x
    x = 24,805,774,798.85/180,989.92
  6. Step 6: Final answer
    x = 137,056.11

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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.