Home / 145,116.23-217,691.66-70,182.53

Finding the Fourth Proportional to 145,116.23, 217,691.66 and 70,182.53

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Solution

The fourth proportional to 145,116.23, 217,691.66 and 70,182.53 is: 105,282.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,116.23 : 217,691.66 = 70,182.53 : x
  2. Step 2: Convert to fraction form
    145,116.23/217,691.66 = 70,182.53/x
  3. Step 3: Cross multiply
    145,116.23x = 217,691.66 × 70,182.53
  4. Step 4: Simplify right side
    145,116.23x = 15,278,150,970.61
  5. Step 5: Solve for x
    x = 15,278,150,970.61/145,116.23
  6. Step 6: Final answer
    x = 105,282.17

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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.