Home / 112,832.88-155,703.20-61,836.40

Finding the Fourth Proportional to 112,832.88, 155,703.20 and 61,836.40

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Solution

The fourth proportional to 112,832.88, 155,703.20 and 61,836.40 is: 85,330.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,832.88 : 155,703.20 = 61,836.40 : x
  2. Step 2: Convert to fraction form
    112,832.88/155,703.20 = 61,836.40/x
  3. Step 3: Cross multiply
    112,832.88x = 155,703.20 × 61,836.40
  4. Step 4: Simplify right side
    112,832.88x = 9,628,125,356.48
  5. Step 5: Solve for x
    x = 9,628,125,356.48/112,832.88
  6. Step 6: Final answer
    x = 85,330.85

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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.