Home / 122,140.17-182,010.78-118,126.62

Finding the Fourth Proportional to 122,140.17, 182,010.78 and 118,126.62

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Solution

The fourth proportional to 122,140.17, 182,010.78 and 118,126.62 is: 176,029.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,140.17 : 182,010.78 = 118,126.62 : x
  2. Step 2: Convert to fraction form
    122,140.17/182,010.78 = 118,126.62/x
  3. Step 3: Cross multiply
    122,140.17x = 182,010.78 × 118,126.62
  4. Step 4: Simplify right side
    122,140.17x = 21,500,318,244.96
  5. Step 5: Solve for x
    x = 21,500,318,244.96/122,140.17
  6. Step 6: Final answer
    x = 176,029.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.