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Finding the Fourth Proportional to 88,962.80, 133,444.20 and 85,123.40

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Solution

The fourth proportional to 88,962.80, 133,444.20 and 85,123.40 is: 127,685.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,962.80 : 133,444.20 = 85,123.40 : x
  2. Step 2: Convert to fraction form
    88,962.80/133,444.20 = 85,123.40/x
  3. Step 3: Cross multiply
    88,962.80x = 133,444.20 × 85,123.40
  4. Step 4: Simplify right side
    88,962.80x = 11,359,224,014.28
  5. Step 5: Solve for x
    x = 11,359,224,014.28/88,962.80
  6. Step 6: Final answer
    x = 127,685.10

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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.