Home / 86,916.30-130,180.05-75,252.30

Finding the Fourth Proportional to 86,916.30, 130,180.05 and 75,252.30

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Solution

The fourth proportional to 86,916.30, 130,180.05 and 75,252.30 is: 112,710.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,916.30 : 130,180.05 = 75,252.30 : x
  2. Step 2: Convert to fraction form
    86,916.30/130,180.05 = 75,252.30/x
  3. Step 3: Cross multiply
    86,916.30x = 130,180.05 × 75,252.30
  4. Step 4: Simplify right side
    86,916.30x = 9,796,348,176.62
  5. Step 5: Solve for x
    x = 9,796,348,176.62/86,916.30
  6. Step 6: Final answer
    x = 112,710.14

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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.