Home / 96,478.90-144,664.17-66,118.30

Finding the Fourth Proportional to 96,478.90, 144,664.17 and 66,118.30

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Solution

The fourth proportional to 96,478.90, 144,664.17 and 66,118.30 is: 99,140.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,478.90 : 144,664.17 = 66,118.30 : x
  2. Step 2: Convert to fraction form
    96,478.90/144,664.17 = 66,118.30/x
  3. Step 3: Cross multiply
    96,478.90x = 144,664.17 × 66,118.30
  4. Step 4: Simplify right side
    96,478.90x = 9,564,948,991.31
  5. Step 5: Solve for x
    x = 9,564,948,991.31/96,478.90
  6. Step 6: Final answer
    x = 99,140.32

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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.