Home / 127,358.85-175,700.70-79,529.16

Finding the Fourth Proportional to 127,358.85, 175,700.70 and 79,529.16

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Solution

The fourth proportional to 127,358.85, 175,700.70 and 79,529.16 is: 109,716.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,358.85 : 175,700.70 = 79,529.16 : x
  2. Step 2: Convert to fraction form
    127,358.85/175,700.70 = 79,529.16/x
  3. Step 3: Cross multiply
    127,358.85x = 175,700.70 × 79,529.16
  4. Step 4: Simplify right side
    127,358.85x = 13,973,329,082.41
  5. Step 5: Solve for x
    x = 13,973,329,082.41/127,358.85
  6. Step 6: Final answer
    x = 109,716.20

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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.