Home / 103,459.24-155,177.11-28,590

Finding the Fourth Proportional to 103,459.24, 155,177.11 and 28,590

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Solution

The fourth proportional to 103,459.24, 155,177.11 and 28,590 is: 42,881.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,459.24 : 155,177.11 = 28,590 : x
  2. Step 2: Convert to fraction form
    103,459.24/155,177.11 = 28,590/x
  3. Step 3: Cross multiply
    103,459.24x = 155,177.11 × 28,590
  4. Step 4: Simplify right side
    103,459.24x = 4,436,513,574.90
  5. Step 5: Solve for x
    x = 4,436,513,574.90/103,459.24
  6. Step 6: Final answer
    x = 42,881.75

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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.