Home / 130,170.24-180,555.13-126,715.46

Finding the Fourth Proportional to 130,170.24, 180,555.13 and 126,715.46

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Solution

The fourth proportional to 130,170.24, 180,555.13 and 126,715.46 is: 175,763.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,170.24 : 180,555.13 = 126,715.46 : x
  2. Step 2: Convert to fraction form
    130,170.24/180,555.13 = 126,715.46/x
  3. Step 3: Cross multiply
    130,170.24x = 180,555.13 × 126,715.46
  4. Step 4: Simplify right side
    130,170.24x = 22,879,127,221.46
  5. Step 5: Solve for x
    x = 22,879,127,221.46/130,170.24
  6. Step 6: Final answer
    x = 175,763.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.