Home / 145,339.31-218,009.88-40,159.19

Finding the Fourth Proportional to 145,339.31, 218,009.88 and 40,159.19

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Solution

The fourth proportional to 145,339.31, 218,009.88 and 40,159.19 is: 60,239.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,339.31 : 218,009.88 = 40,159.19 : x
  2. Step 2: Convert to fraction form
    145,339.31/218,009.88 = 40,159.19/x
  3. Step 3: Cross multiply
    145,339.31x = 218,009.88 × 40,159.19
  4. Step 4: Simplify right side
    145,339.31x = 8,755,100,737.82
  5. Step 5: Solve for x
    x = 8,755,100,737.82/145,339.31
  6. Step 6: Final answer
    x = 60,239.04

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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.