Home / 124,530.20-186,503.70-84,872.60

Finding the Fourth Proportional to 124,530.20, 186,503.70 and 84,872.60

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Solution

The fourth proportional to 124,530.20, 186,503.70 and 84,872.60 is: 127,110.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,530.20 : 186,503.70 = 84,872.60 : x
  2. Step 2: Convert to fraction form
    124,530.20/186,503.70 = 84,872.60/x
  3. Step 3: Cross multiply
    124,530.20x = 186,503.70 × 84,872.60
  4. Step 4: Simplify right side
    124,530.20x = 15,829,053,928.62
  5. Step 5: Solve for x
    x = 15,829,053,928.62/124,530.20
  6. Step 6: Final answer
    x = 127,110.16

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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.