Home / 112,679.14-155,495.88-61,691.26

Finding the Fourth Proportional to 112,679.14, 155,495.88 and 61,691.26

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Solution

The fourth proportional to 112,679.14, 155,495.88 and 61,691.26 is: 85,133.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,679.14 : 155,495.88 = 61,691.26 : x
  2. Step 2: Convert to fraction form
    112,679.14/155,495.88 = 61,691.26/x
  3. Step 3: Cross multiply
    112,679.14x = 155,495.88 × 61,691.26
  4. Step 4: Simplify right side
    112,679.14x = 9,592,736,762.01
  5. Step 5: Solve for x
    x = 9,592,736,762.01/112,679.14
  6. Step 6: Final answer
    x = 85,133.21

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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.