Home / 103,402.28-155,030.99-52,816.70

Finding the Fourth Proportional to 103,402.28, 155,030.99 and 52,816.70

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Solution

The fourth proportional to 103,402.28, 155,030.99 and 52,816.70 is: 79,188.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,402.28 : 155,030.99 = 52,816.70 : x
  2. Step 2: Convert to fraction form
    103,402.28/155,030.99 = 52,816.70/x
  3. Step 3: Cross multiply
    103,402.28x = 155,030.99 × 52,816.70
  4. Step 4: Simplify right side
    103,402.28x = 8,188,225,289.53
  5. Step 5: Solve for x
    x = 8,188,225,289.53/103,402.28
  6. Step 6: Final answer
    x = 79,188.05

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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.