Home / 86,923.60-130,543.80-76,037.20

Finding the Fourth Proportional to 86,923.60, 130,543.80 and 76,037.20

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Solution

The fourth proportional to 86,923.60, 130,543.80 and 76,037.20 is: 114,194.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,923.60 : 130,543.80 = 76,037.20 : x
  2. Step 2: Convert to fraction form
    86,923.60/130,543.80 = 76,037.20/x
  3. Step 3: Cross multiply
    86,923.60x = 130,543.80 × 76,037.20
  4. Step 4: Simplify right side
    86,923.60x = 9,926,185,029.36
  5. Step 5: Solve for x
    x = 9,926,185,029.36/86,923.60
  6. Step 6: Final answer
    x = 114,194.36

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.