Home / 101,406.47-152,126.10-42,248.12

Finding the Fourth Proportional to 101,406.47, 152,126.10 and 42,248.12

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Solution

The fourth proportional to 101,406.47, 152,126.10 and 42,248.12 is: 63,379.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,406.47 : 152,126.10 = 42,248.12 : x
  2. Step 2: Convert to fraction form
    101,406.47/152,126.10 = 42,248.12/x
  3. Step 3: Cross multiply
    101,406.47x = 152,126.10 × 42,248.12
  4. Step 4: Simplify right side
    101,406.47x = 6,427,040,967.30
  5. Step 5: Solve for x
    x = 6,427,040,967.30/101,406.47
  6. Step 6: Final answer
    x = 63,379.01

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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.