Home / 122,035.76-168,423.48-74,317.04

Finding the Fourth Proportional to 122,035.76, 168,423.48 and 74,317.04

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Solution

The fourth proportional to 122,035.76, 168,423.48 and 74,317.04 is: 102,566.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,035.76 : 168,423.48 = 74,317.04 : x
  2. Step 2: Convert to fraction form
    122,035.76/168,423.48 = 74,317.04/x
  3. Step 3: Cross multiply
    122,035.76x = 168,423.48 × 74,317.04
  4. Step 4: Simplify right side
    122,035.76x = 12,516,734,500.10
  5. Step 5: Solve for x
    x = 12,516,734,500.10/122,035.76
  6. Step 6: Final answer
    x = 102,566.12

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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.