Home / 129,947.08-179,271.06-76,248.52

Finding the Fourth Proportional to 129,947.08, 179,271.06 and 76,248.52

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Solution

The fourth proportional to 129,947.08, 179,271.06 and 76,248.52 is: 105,190.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,947.08 : 179,271.06 = 76,248.52 : x
  2. Step 2: Convert to fraction form
    129,947.08/179,271.06 = 76,248.52/x
  3. Step 3: Cross multiply
    129,947.08x = 179,271.06 × 76,248.52
  4. Step 4: Simplify right side
    129,947.08x = 13,669,153,003.83
  5. Step 5: Solve for x
    x = 13,669,153,003.83/129,947.08
  6. Step 6: Final answer
    x = 105,190.15

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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.