Home / 104,531.61-144,255.17-56,785.89

Finding the Fourth Proportional to 104,531.61, 144,255.17 and 56,785.89

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Solution

The fourth proportional to 104,531.61, 144,255.17 and 56,785.89 is: 78,365.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,531.61 : 144,255.17 = 56,785.89 : x
  2. Step 2: Convert to fraction form
    104,531.61/144,255.17 = 56,785.89/x
  3. Step 3: Cross multiply
    104,531.61x = 144,255.17 × 56,785.89
  4. Step 4: Simplify right side
    104,531.61x = 8,191,657,931.62
  5. Step 5: Solve for x
    x = 8,191,657,931.62/104,531.61
  6. Step 6: Final answer
    x = 78,365.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.