Home / 272,972.70-409,459.05-83,432.70

Finding the Fourth Proportional to 272,972.70, 409,459.05 and 83,432.70

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Solution

The fourth proportional to 272,972.70, 409,459.05 and 83,432.70 is: 125,149.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,972.70 : 409,459.05 = 83,432.70 : x
  2. Step 2: Convert to fraction form
    272,972.70/409,459.05 = 83,432.70/x
  3. Step 3: Cross multiply
    272,972.70x = 409,459.05 × 83,432.70
  4. Step 4: Simplify right side
    272,972.70x = 34,162,274,080.94
  5. Step 5: Solve for x
    x = 34,162,274,080.94/272,972.70
  6. Step 6: Final answer
    x = 125,149.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.