Home / 103,350.15-155,011.10-28,459.52

Finding the Fourth Proportional to 103,350.15, 155,011.10 and 28,459.52

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Solution

The fourth proportional to 103,350.15, 155,011.10 and 28,459.52 is: 42,685.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,350.15 : 155,011.10 = 28,459.52 : x
  2. Step 2: Convert to fraction form
    103,350.15/155,011.10 = 28,459.52/x
  3. Step 3: Cross multiply
    103,350.15x = 155,011.10 × 28,459.52
  4. Step 4: Simplify right side
    103,350.15x = 4,411,541,358.37
  5. Step 5: Solve for x
    x = 4,411,541,358.37/103,350.15
  6. Step 6: Final answer
    x = 42,685.39

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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.