Home / 112,659.96-155,468.34-61,671.36

Finding the Fourth Proportional to 112,659.96, 155,468.34 and 61,671.36

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Solution

The fourth proportional to 112,659.96, 155,468.34 and 61,671.36 is: 85,105.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,659.96 : 155,468.34 = 61,671.36 : x
  2. Step 2: Convert to fraction form
    112,659.96/155,468.34 = 61,671.36/x
  3. Step 3: Cross multiply
    112,659.96x = 155,468.34 × 61,671.36
  4. Step 4: Simplify right side
    112,659.96x = 9,587,943,964.74
  5. Step 5: Solve for x
    x = 9,587,943,964.74/112,659.96
  6. Step 6: Final answer
    x = 85,105.16

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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.