Home / 101,386-151,976.94-42,254.38

Finding the Fourth Proportional to 101,386, 151,976.94 and 42,254.38

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Solution

The fourth proportional to 101,386, 151,976.94 and 42,254.38 is: 63,339.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,386 : 151,976.94 = 42,254.38 : x
  2. Step 2: Convert to fraction form
    101,386/151,976.94 = 42,254.38/x
  3. Step 3: Cross multiply
    101,386x = 151,976.94 × 42,254.38
  4. Step 4: Simplify right side
    101,386x = 6,421,691,374.00
  5. Step 5: Solve for x
    x = 6,421,691,374.00/101,386
  6. Step 6: Final answer
    x = 63,339.03

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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.