Home / 130,177.88-179,611.02-76,445.72

Finding the Fourth Proportional to 130,177.88, 179,611.02 and 76,445.72

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Solution

The fourth proportional to 130,177.88, 179,611.02 and 76,445.72 is: 105,474.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,177.88 : 179,611.02 = 76,445.72 : x
  2. Step 2: Convert to fraction form
    130,177.88/179,611.02 = 76,445.72/x
  3. Step 3: Cross multiply
    130,177.88x = 179,611.02 × 76,445.72
  4. Step 4: Simplify right side
    130,177.88x = 13,730,493,743.83
  5. Step 5: Solve for x
    x = 13,730,493,743.83/130,177.88
  6. Step 6: Final answer
    x = 105,474.86

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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.