Home / 137,215.49-205,675.61-89,681.04

Finding the Fourth Proportional to 137,215.49, 205,675.61 and 89,681.04

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Solution

The fourth proportional to 137,215.49, 205,675.61 and 89,681.04 is: 134,425.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,215.49 : 205,675.61 = 89,681.04 : x
  2. Step 2: Convert to fraction form
    137,215.49/205,675.61 = 89,681.04/x
  3. Step 3: Cross multiply
    137,215.49x = 205,675.61 × 89,681.04
  4. Step 4: Simplify right side
    137,215.49x = 18,445,202,159.03
  5. Step 5: Solve for x
    x = 18,445,202,159.03/137,215.49
  6. Step 6: Final answer
    x = 134,425.08

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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.