Home / 103,587.70-155,385.18-28,701.82

Finding the Fourth Proportional to 103,587.70, 155,385.18 and 28,701.82

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Solution

The fourth proportional to 103,587.70, 155,385.18 and 28,701.82 is: 43,053.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,587.70 : 155,385.18 = 28,701.82 : x
  2. Step 2: Convert to fraction form
    103,587.70/155,385.18 = 28,701.82/x
  3. Step 3: Cross multiply
    103,587.70x = 155,385.18 × 28,701.82
  4. Step 4: Simplify right side
    103,587.70x = 4,459,837,467.03
  5. Step 5: Solve for x
    x = 4,459,837,467.03/103,587.70
  6. Step 6: Final answer
    x = 43,053.74

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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.