Home / 138,764.24-208,229.40-59,878.47

Finding the Fourth Proportional to 138,764.24, 208,229.40 and 59,878.47

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Solution

The fourth proportional to 138,764.24, 208,229.40 and 59,878.47 is: 89,853.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,764.24 : 208,229.40 = 59,878.47 : x
  2. Step 2: Convert to fraction form
    138,764.24/208,229.40 = 59,878.47/x
  3. Step 3: Cross multiply
    138,764.24x = 208,229.40 × 59,878.47
  4. Step 4: Simplify right side
    138,764.24x = 12,468,457,881.02
  5. Step 5: Solve for x
    x = 12,468,457,881.02/138,764.24
  6. Step 6: Final answer
    x = 89,853.54

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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.