Home / 130,291.16-179,793.48-72,920.83

Finding the Fourth Proportional to 130,291.16, 179,793.48 and 72,920.83

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Solution

The fourth proportional to 130,291.16, 179,793.48 and 72,920.83 is: 100,626.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,291.16 : 179,793.48 = 72,920.83 : x
  2. Step 2: Convert to fraction form
    130,291.16/179,793.48 = 72,920.83/x
  3. Step 3: Cross multiply
    130,291.16x = 179,793.48 × 72,920.83
  4. Step 4: Simplify right side
    130,291.16x = 13,110,689,340.70
  5. Step 5: Solve for x
    x = 13,110,689,340.70/130,291.16
  6. Step 6: Final answer
    x = 100,626.08

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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.