Home / 130,204.12-179,695.08-79,220.46

Finding the Fourth Proportional to 130,204.12, 179,695.08 and 79,220.46

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Solution

The fourth proportional to 130,204.12, 179,695.08 and 79,220.46 is: 109,332.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,204.12 : 179,695.08 = 79,220.46 : x
  2. Step 2: Convert to fraction form
    130,204.12/179,695.08 = 79,220.46/x
  3. Step 3: Cross multiply
    130,204.12x = 179,695.08 × 79,220.46
  4. Step 4: Simplify right side
    130,204.12x = 14,235,526,897.34
  5. Step 5: Solve for x
    x = 14,235,526,897.34/130,204.12
  6. Step 6: Final answer
    x = 109,332.38

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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.