Home / 130,374.16-179,997.60-89,608.48

Finding the Fourth Proportional to 130,374.16, 179,997.60 and 89,608.48

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Solution

The fourth proportional to 130,374.16, 179,997.60 and 89,608.48 is: 123,715.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,374.16 : 179,997.60 = 89,608.48 : x
  2. Step 2: Convert to fraction form
    130,374.16/179,997.60 = 89,608.48/x
  3. Step 3: Cross multiply
    130,374.16x = 179,997.60 × 89,608.48
  4. Step 4: Simplify right side
    130,374.16x = 16,129,311,339.65
  5. Step 5: Solve for x
    x = 16,129,311,339.65/130,374.16
  6. Step 6: Final answer
    x = 123,715.55

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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.