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Finding the Fourth Proportional to 173,455.89, 239,409.14 and 112,921.13

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Solution

The fourth proportional to 173,455.89, 239,409.14 and 112,921.13 is: 155,857.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,455.89 : 239,409.14 = 112,921.13 : x
  2. Step 2: Convert to fraction form
    173,455.89/239,409.14 = 112,921.13/x
  3. Step 3: Cross multiply
    173,455.89x = 239,409.14 × 112,921.13
  4. Step 4: Simplify right side
    173,455.89x = 27,034,348,859.48
  5. Step 5: Solve for x
    x = 27,034,348,859.48/173,455.89
  6. Step 6: Final answer
    x = 155,857.20

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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.