Home / 130,703.39-180,363.20-72,557.13

Finding the Fourth Proportional to 130,703.39, 180,363.20 and 72,557.13

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Solution

The fourth proportional to 130,703.39, 180,363.20 and 72,557.13 is: 100,124.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,703.39 : 180,363.20 = 72,557.13 : x
  2. Step 2: Convert to fraction form
    130,703.39/180,363.20 = 72,557.13/x
  3. Step 3: Cross multiply
    130,703.39x = 180,363.20 × 72,557.13
  4. Step 4: Simplify right side
    130,703.39x = 13,086,635,786.83
  5. Step 5: Solve for x
    x = 13,086,635,786.83/130,703.39
  6. Step 6: Final answer
    x = 100,124.69

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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.