Home / 112,335.40-168,387.90-65,564.20

Finding the Fourth Proportional to 112,335.40, 168,387.90 and 65,564.20

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Solution

The fourth proportional to 112,335.40, 168,387.90 and 65,564.20 is: 98,279.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,335.40 : 168,387.90 = 65,564.20 : x
  2. Step 2: Convert to fraction form
    112,335.40/168,387.90 = 65,564.20/x
  3. Step 3: Cross multiply
    112,335.40x = 168,387.90 × 65,564.20
  4. Step 4: Simplify right side
    112,335.40x = 11,040,217,953.18
  5. Step 5: Solve for x
    x = 11,040,217,953.18/112,335.40
  6. Step 6: Final answer
    x = 98,279.06

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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.