Home / 172,560.13-238,130.72-99,972.92

Finding the Fourth Proportional to 172,560.13, 238,130.72 and 99,972.92

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Solution

The fourth proportional to 172,560.13, 238,130.72 and 99,972.92 is: 137,961.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,560.13 : 238,130.72 = 99,972.92 : x
  2. Step 2: Convert to fraction form
    172,560.13/238,130.72 = 99,972.92/x
  3. Step 3: Cross multiply
    172,560.13x = 238,130.72 × 99,972.92
  4. Step 4: Simplify right side
    172,560.13x = 23,806,623,420.10
  5. Step 5: Solve for x
    x = 23,806,623,420.10/172,560.13
  6. Step 6: Final answer
    x = 137,961.32

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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.