Home / 91,212.20-136,818.30-42,060.20

Finding the Fourth Proportional to 91,212.20, 136,818.30 and 42,060.20

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Solution

The fourth proportional to 91,212.20, 136,818.30 and 42,060.20 is: 63,090.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,212.20 : 136,818.30 = 42,060.20 : x
  2. Step 2: Convert to fraction form
    91,212.20/136,818.30 = 42,060.20/x
  3. Step 3: Cross multiply
    91,212.20x = 136,818.30 × 42,060.20
  4. Step 4: Simplify right side
    91,212.20x = 5,754,605,061.66
  5. Step 5: Solve for x
    x = 5,754,605,061.66/91,212.20
  6. Step 6: Final answer
    x = 63,090.30

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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.