Home / 145,204.17-217,862.09-70,318.55

Finding the Fourth Proportional to 145,204.17, 217,862.09 and 70,318.55

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Solution

The fourth proportional to 145,204.17, 217,862.09 and 70,318.55 is: 105,504.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,204.17 : 217,862.09 = 70,318.55 : x
  2. Step 2: Convert to fraction form
    145,204.17/217,862.09 = 70,318.55/x
  3. Step 3: Cross multiply
    145,204.17x = 217,862.09 × 70,318.55
  4. Step 4: Simplify right side
    145,204.17x = 15,319,746,725.53
  5. Step 5: Solve for x
    x = 15,319,746,725.53/145,204.17
  6. Step 6: Final answer
    x = 105,504.87

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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.