Home / 122,097.17-168,508.01-74,378.45

Finding the Fourth Proportional to 122,097.17, 168,508.01 and 74,378.45

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Solution

The fourth proportional to 122,097.17, 168,508.01 and 74,378.45 is: 102,650.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,097.17 : 168,508.01 = 74,378.45 : x
  2. Step 2: Convert to fraction form
    122,097.17/168,508.01 = 74,378.45/x
  3. Step 3: Cross multiply
    122,097.17x = 168,508.01 × 74,378.45
  4. Step 4: Simplify right side
    122,097.17x = 12,533,364,596.38
  5. Step 5: Solve for x
    x = 12,533,364,596.38/122,097.17
  6. Step 6: Final answer
    x = 102,650.74

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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.