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Finding the Fourth Proportional to 157,107.15, 216,830.12 and 89,141.00

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Solution

The fourth proportional to 157,107.15, 216,830.12 and 89,141.00 is: 123,027.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,107.15 : 216,830.12 = 89,141.00 : x
  2. Step 2: Convert to fraction form
    157,107.15/216,830.12 = 89,141.00/x
  3. Step 3: Cross multiply
    157,107.15x = 216,830.12 × 89,141.00
  4. Step 4: Simplify right side
    157,107.15x = 19,328,452,197.06
  5. Step 5: Solve for x
    x = 19,328,452,197.06/157,107.15
  6. Step 6: Final answer
    x = 123,027.20

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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.