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Finding the Fourth Proportional to 180,560.73, 249,170.73 and 99,986.52

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Solution

The fourth proportional to 180,560.73, 249,170.73 and 99,986.52 is: 137,979.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,560.73 : 249,170.73 = 99,986.52 : x
  2. Step 2: Convert to fraction form
    180,560.73/249,170.73 = 99,986.52/x
  3. Step 3: Cross multiply
    180,560.73x = 249,170.73 × 99,986.52
  4. Step 4: Simplify right side
    180,560.73x = 24,913,714,178.56
  5. Step 5: Solve for x
    x = 24,913,714,178.56/180,560.73
  6. Step 6: Final answer
    x = 137,979.69

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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.