Home / 138,931.90-208,376.02-44,149.59

Finding the Fourth Proportional to 138,931.90, 208,376.02 and 44,149.59

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Solution

The fourth proportional to 138,931.90, 208,376.02 and 44,149.59 is: 66,217.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,931.90 : 208,376.02 = 44,149.59 : x
  2. Step 2: Convert to fraction form
    138,931.90/208,376.02 = 44,149.59/x
  3. Step 3: Cross multiply
    138,931.90x = 208,376.02 × 44,149.59
  4. Step 4: Simplify right side
    138,931.90x = 9,199,715,848.83
  5. Step 5: Solve for x
    x = 9,199,715,848.83/138,931.90
  6. Step 6: Final answer
    x = 66,217.45

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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.