Home / 158,042.56-218,033.04-103,579.84

Finding the Fourth Proportional to 158,042.56, 218,033.04 and 103,579.84

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Solution

The fourth proportional to 158,042.56, 218,033.04 and 103,579.84 is: 142,897.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,042.56 : 218,033.04 = 103,579.84 : x
  2. Step 2: Convert to fraction form
    158,042.56/218,033.04 = 103,579.84/x
  3. Step 3: Cross multiply
    158,042.56x = 218,033.04 × 103,579.84
  4. Step 4: Simplify right side
    158,042.56x = 22,583,827,397.91
  5. Step 5: Solve for x
    x = 22,583,827,397.91/158,042.56
  6. Step 6: Final answer
    x = 142,897.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.