Home / 98,083.28-147,215.12-76,038.32

Finding the Fourth Proportional to 98,083.28, 147,215.12 and 76,038.32

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Solution

The fourth proportional to 98,083.28, 147,215.12 and 76,038.32 is: 114,127.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,083.28 : 147,215.12 = 76,038.32 : x
  2. Step 2: Convert to fraction form
    98,083.28/147,215.12 = 76,038.32/x
  3. Step 3: Cross multiply
    98,083.28x = 147,215.12 × 76,038.32
  4. Step 4: Simplify right side
    98,083.28x = 11,193,989,287.13
  5. Step 5: Solve for x
    x = 11,193,989,287.13/98,083.28
  6. Step 6: Final answer
    x = 114,127.40

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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.