Home / 124,631.60-186,925.80-45,705.20

Finding the Fourth Proportional to 124,631.60, 186,925.80 and 45,705.20

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Solution

The fourth proportional to 124,631.60, 186,925.80 and 45,705.20 is: 68,549.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,631.60 : 186,925.80 = 45,705.20 : x
  2. Step 2: Convert to fraction form
    124,631.60/186,925.80 = 45,705.20/x
  3. Step 3: Cross multiply
    124,631.60x = 186,925.80 × 45,705.20
  4. Step 4: Simplify right side
    124,631.60x = 8,543,481,074.16
  5. Step 5: Solve for x
    x = 8,543,481,074.16/124,631.60
  6. Step 6: Final answer
    x = 68,549.88

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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.