Home / 117,966.53-162,902-74,960.20

Finding the Fourth Proportional to 117,966.53, 162,902 and 74,960.20

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Solution

The fourth proportional to 117,966.53, 162,902 and 74,960.20 is: 103,513.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,966.53 : 162,902 = 74,960.20 : x
  2. Step 2: Convert to fraction form
    117,966.53/162,902 = 74,960.20/x
  3. Step 3: Cross multiply
    117,966.53x = 162,902 × 74,960.20
  4. Step 4: Simplify right side
    117,966.53x = 12,211,166,500.40
  5. Step 5: Solve for x
    x = 12,211,166,500.40/117,966.53
  6. Step 6: Final answer
    x = 103,513.82

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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.