Home / 86,891.31-130,113.56-60,199.28

Finding the Fourth Proportional to 86,891.31, 130,113.56 and 60,199.28

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Solution

The fourth proportional to 86,891.31, 130,113.56 and 60,199.28 is: 90,144.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,891.31 : 130,113.56 = 60,199.28 : x
  2. Step 2: Convert to fraction form
    86,891.31/130,113.56 = 60,199.28/x
  3. Step 3: Cross multiply
    86,891.31x = 130,113.56 × 60,199.28
  4. Step 4: Simplify right side
    86,891.31x = 7,832,742,630.24
  5. Step 5: Solve for x
    x = 7,832,742,630.24/86,891.31
  6. Step 6: Final answer
    x = 90,144.14

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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.