Home / 122,338.29-168,749.10-88,396.62

Finding the Fourth Proportional to 122,338.29, 168,749.10 and 88,396.62

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Solution

The fourth proportional to 122,338.29, 168,749.10 and 88,396.62 is: 121,931.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,338.29 : 168,749.10 = 88,396.62 : x
  2. Step 2: Convert to fraction form
    122,338.29/168,749.10 = 88,396.62/x
  3. Step 3: Cross multiply
    122,338.29x = 168,749.10 × 88,396.62
  4. Step 4: Simplify right side
    122,338.29x = 14,916,850,068.04
  5. Step 5: Solve for x
    x = 14,916,850,068.04/122,338.29
  6. Step 6: Final answer
    x = 121,931.16

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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.