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Finding the Fourth Proportional to 157,340.70, 235,989.45 and 52,148.70

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Solution

The fourth proportional to 157,340.70, 235,989.45 and 52,148.70 is: 78,215.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,340.70 : 235,989.45 = 52,148.70 : x
  2. Step 2: Convert to fraction form
    157,340.70/235,989.45 = 52,148.70/x
  3. Step 3: Cross multiply
    157,340.70x = 235,989.45 × 52,148.70
  4. Step 4: Simplify right side
    157,340.70x = 12,306,543,031.22
  5. Step 5: Solve for x
    x = 12,306,543,031.22/157,340.70
  6. Step 6: Final answer
    x = 78,215.89

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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.