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Finding the Fourth Proportional to 180,532.73, 249,144.36 and 99,969.12

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Solution

The fourth proportional to 180,532.73, 249,144.36 and 99,969.12 is: 137,962.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,532.73 : 249,144.36 = 99,969.12 : x
  2. Step 2: Convert to fraction form
    180,532.73/249,144.36 = 99,969.12/x
  3. Step 3: Cross multiply
    180,532.73x = 249,144.36 × 99,969.12
  4. Step 4: Simplify right side
    180,532.73x = 24,906,742,047.28
  5. Step 5: Solve for x
    x = 24,906,742,047.28/180,532.73
  6. Step 6: Final answer
    x = 137,962.47

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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.