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Finding the Fourth Proportional to 101,312.30, 151,985.14 and 42,152.13

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Solution

The fourth proportional to 101,312.30, 151,985.14 and 42,152.13 is: 63,235.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,312.30 : 151,985.14 = 42,152.13 : x
  2. Step 2: Convert to fraction form
    101,312.30/151,985.14 = 42,152.13/x
  3. Step 3: Cross multiply
    101,312.30x = 151,985.14 × 42,152.13
  4. Step 4: Simplify right side
    101,312.30x = 6,406,497,273.97
  5. Step 5: Solve for x
    x = 6,406,497,273.97/101,312.30
  6. Step 6: Final answer
    x = 63,235.14

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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.