Home / 145,142.06-217,721.19-45,316.04

Finding the Fourth Proportional to 145,142.06, 217,721.19 and 45,316.04

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Solution

The fourth proportional to 145,142.06, 217,721.19 and 45,316.04 is: 67,976.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,142.06 : 217,721.19 = 45,316.04 : x
  2. Step 2: Convert to fraction form
    145,142.06/217,721.19 = 45,316.04/x
  3. Step 3: Cross multiply
    145,142.06x = 217,721.19 × 45,316.04
  4. Step 4: Simplify right side
    145,142.06x = 9,866,262,154.89
  5. Step 5: Solve for x
    x = 9,866,262,154.89/145,142.06
  6. Step 6: Final answer
    x = 67,976.59

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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.