Home / 130,205.24-179,686.60-72,842.66

Finding the Fourth Proportional to 130,205.24, 179,686.60 and 72,842.66

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Solution

The fourth proportional to 130,205.24, 179,686.60 and 72,842.66 is: 100,524.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,205.24 : 179,686.60 = 72,842.66 : x
  2. Step 2: Convert to fraction form
    130,205.24/179,686.60 = 72,842.66/x
  3. Step 3: Cross multiply
    130,205.24x = 179,686.60 × 72,842.66
  4. Step 4: Simplify right side
    130,205.24x = 13,088,849,910.36
  5. Step 5: Solve for x
    x = 13,088,849,910.36/130,205.24
  6. Step 6: Final answer
    x = 100,524.76

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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.