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Finding the Fourth Proportional to 180,697.53, 249,363.05 and 100,124.40

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Solution

The fourth proportional to 180,697.53, 249,363.05 and 100,124.40 is: 138,171.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,697.53 : 249,363.05 = 100,124.40 : x
  2. Step 2: Convert to fraction form
    180,697.53/249,363.05 = 100,124.40/x
  3. Step 3: Cross multiply
    180,697.53x = 249,363.05 × 100,124.40
  4. Step 4: Simplify right side
    180,697.53x = 24,967,325,262.80
  5. Step 5: Solve for x
    x = 24,967,325,262.80/180,697.53
  6. Step 6: Final answer
    x = 138,171.92

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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.