Home / 126,154.08-174,057.84-72,436.32

Finding the Fourth Proportional to 126,154.08, 174,057.84 and 72,436.32

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Solution

The fourth proportional to 126,154.08, 174,057.84 and 72,436.32 is: 99,942.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,154.08 : 174,057.84 = 72,436.32 : x
  2. Step 2: Convert to fraction form
    126,154.08/174,057.84 = 72,436.32/x
  3. Step 3: Cross multiply
    126,154.08x = 174,057.84 × 72,436.32
  4. Step 4: Simplify right side
    126,154.08x = 12,608,109,396.75
  5. Step 5: Solve for x
    x = 12,608,109,396.75/126,154.08
  6. Step 6: Final answer
    x = 99,942.15

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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.