Home / 156,620.16-216,082.08-88,629.12

Finding the Fourth Proportional to 156,620.16, 216,082.08 and 88,629.12

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Solution

The fourth proportional to 156,620.16, 216,082.08 and 88,629.12 is: 122,277.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,620.16 : 216,082.08 = 88,629.12 : x
  2. Step 2: Convert to fraction form
    156,620.16/216,082.08 = 88,629.12/x
  3. Step 3: Cross multiply
    156,620.16x = 216,082.08 × 88,629.12
  4. Step 4: Simplify right side
    156,620.16x = 19,151,164,598.17
  5. Step 5: Solve for x
    x = 19,151,164,598.17/156,620.16
  6. Step 6: Final answer
    x = 122,277.77

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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.