Home / 103,446.20-155,166.15-28,570.88

Finding the Fourth Proportional to 103,446.20, 155,166.15 and 28,570.88

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Solution

The fourth proportional to 103,446.20, 155,166.15 and 28,570.88 is: 42,855.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,446.20 : 155,166.15 = 28,570.88 : x
  2. Step 2: Convert to fraction form
    103,446.20/155,166.15 = 28,570.88/x
  3. Step 3: Cross multiply
    103,446.20x = 155,166.15 × 28,570.88
  4. Step 4: Simplify right side
    103,446.20x = 4,433,233,451.71
  5. Step 5: Solve for x
    x = 4,433,233,451.71/103,446.20
  6. Step 6: Final answer
    x = 42,855.45

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1.5x scale

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.