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Finding the Fourth Proportional to 122,354.76, 168,752.16 and 101,097.12

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Solution

The fourth proportional to 122,354.76, 168,752.16 and 101,097.12 is: 139,433.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,354.76 : 168,752.16 = 101,097.12 : x
  2. Step 2: Convert to fraction form
    122,354.76/168,752.16 = 101,097.12/x
  3. Step 3: Cross multiply
    122,354.76x = 168,752.16 × 101,097.12
  4. Step 4: Simplify right side
    122,354.76x = 17,060,357,369.78
  5. Step 5: Solve for x
    x = 17,060,357,369.78/122,354.76
  6. Step 6: Final answer
    x = 139,433.54

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1.5x scale

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.