Home / 145,310.06-217,969.19-40,129.04

Finding the Fourth Proportional to 145,310.06, 217,969.19 and 40,129.04

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Solution

The fourth proportional to 145,310.06, 217,969.19 and 40,129.04 is: 60,194.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,310.06 : 217,969.19 = 40,129.04 : x
  2. Step 2: Convert to fraction form
    145,310.06/217,969.19 = 40,129.04/x
  3. Step 3: Cross multiply
    145,310.06x = 217,969.19 × 40,129.04
  4. Step 4: Simplify right side
    145,310.06x = 8,746,893,053.79
  5. Step 5: Solve for x
    x = 8,746,893,053.79/145,310.06
  6. Step 6: Final answer
    x = 60,194.69

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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.