Home / 112,194.24-154,817.28-61,890

Finding the Fourth Proportional to 112,194.24, 154,817.28 and 61,890

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Solution

The fourth proportional to 112,194.24, 154,817.28 and 61,890 is: 85,402.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,194.24 : 154,817.28 = 61,890 : x
  2. Step 2: Convert to fraction form
    112,194.24/154,817.28 = 61,890/x
  3. Step 3: Cross multiply
    112,194.24x = 154,817.28 × 61,890
  4. Step 4: Simplify right side
    112,194.24x = 9,581,641,459.20
  5. Step 5: Solve for x
    x = 9,581,641,459.20/112,194.24
  6. Step 6: Final answer
    x = 85,402.26

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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.