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Finding the Fourth Proportional to 180,499.32, 249,091.02 and 99,928.17

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Solution

The fourth proportional to 180,499.32, 249,091.02 and 99,928.17 is: 137,901.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,499.32 : 249,091.02 = 99,928.17 : x
  2. Step 2: Convert to fraction form
    180,499.32/249,091.02 = 99,928.17/x
  3. Step 3: Cross multiply
    180,499.32x = 249,091.02 × 99,928.17
  4. Step 4: Simplify right side
    180,499.32x = 24,891,209,792.03
  5. Step 5: Solve for x
    x = 24,891,209,792.03/180,499.32
  6. Step 6: Final answer
    x = 137,901.96

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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.