Home / 130,095.20-179,502.36-75,638.84

Finding the Fourth Proportional to 130,095.20, 179,502.36 and 75,638.84

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Solution

The fourth proportional to 130,095.20, 179,502.36 and 75,638.84 is: 104,364.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,095.20 : 179,502.36 = 75,638.84 : x
  2. Step 2: Convert to fraction form
    130,095.20/179,502.36 = 75,638.84/x
  3. Step 3: Cross multiply
    130,095.20x = 179,502.36 × 75,638.84
  4. Step 4: Simplify right side
    130,095.20x = 13,577,350,287.66
  5. Step 5: Solve for x
    x = 13,577,350,287.66/130,095.20
  6. Step 6: Final answer
    x = 104,364.73

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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.