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Finding the Fourth Proportional to 101,031.65, 151,350.64 and 61,490.69

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Solution

The fourth proportional to 101,031.65, 151,350.64 and 61,490.69 is: 92,116.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,031.65 : 151,350.64 = 61,490.69 : x
  2. Step 2: Convert to fraction form
    101,031.65/151,350.64 = 61,490.69/x
  3. Step 3: Cross multiply
    101,031.65x = 151,350.64 × 61,490.69
  4. Step 4: Simplify right side
    101,031.65x = 9,306,655,285.54
  5. Step 5: Solve for x
    x = 9,306,655,285.54/101,031.65
  6. Step 6: Final answer
    x = 92,116.24

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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.