Home / 86,803.10-130,399.05-83,260.70

Finding the Fourth Proportional to 86,803.10, 130,399.05 and 83,260.70

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Solution

The fourth proportional to 86,803.10, 130,399.05 and 83,260.70 is: 125,077.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,803.10 : 130,399.05 = 83,260.70 : x
  2. Step 2: Convert to fraction form
    86,803.10/130,399.05 = 83,260.70/x
  3. Step 3: Cross multiply
    86,803.10x = 130,399.05 × 83,260.70
  4. Step 4: Simplify right side
    86,803.10x = 10,857,116,182.34
  5. Step 5: Solve for x
    x = 10,857,116,182.34/86,803.10
  6. Step 6: Final answer
    x = 125,077.52

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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.