Home / 112,114.72-154,724.40-64,375.84

Finding the Fourth Proportional to 112,114.72, 154,724.40 and 64,375.84

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Solution

The fourth proportional to 112,114.72, 154,724.40 and 64,375.84 is: 88,842.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,114.72 : 154,724.40 = 64,375.84 : x
  2. Step 2: Convert to fraction form
    112,114.72/154,724.40 = 64,375.84/x
  3. Step 3: Cross multiply
    112,114.72x = 154,724.40 × 64,375.84
  4. Step 4: Simplify right side
    112,114.72x = 9,960,513,218.50
  5. Step 5: Solve for x
    x = 9,960,513,218.50/112,114.72
  6. Step 6: Final answer
    x = 88,842.15

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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.