Home / 145,140.06-217,718.19-45,314.04

Finding the Fourth Proportional to 145,140.06, 217,718.19 and 45,314.04

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Solution

The fourth proportional to 145,140.06, 217,718.19 and 45,314.04 is: 67,973.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,140.06 : 217,718.19 = 45,314.04 : x
  2. Step 2: Convert to fraction form
    145,140.06/217,718.19 = 45,314.04/x
  3. Step 3: Cross multiply
    145,140.06x = 217,718.19 × 45,314.04
  4. Step 4: Simplify right side
    145,140.06x = 9,865,690,770.39
  5. Step 5: Solve for x
    x = 9,865,690,770.39/145,140.06
  6. Step 6: Final answer
    x = 67,973.59

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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.