Home / 98,937.48-136,714.76-72,033.28

Finding the Fourth Proportional to 98,937.48, 136,714.76 and 72,033.28

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Solution

The fourth proportional to 98,937.48, 136,714.76 and 72,033.28 is: 99,537.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,937.48 : 136,714.76 = 72,033.28 : x
  2. Step 2: Convert to fraction form
    98,937.48/136,714.76 = 72,033.28/x
  3. Step 3: Cross multiply
    98,937.48x = 136,714.76 × 72,033.28
  4. Step 4: Simplify right side
    98,937.48x = 9,848,012,587.21
  5. Step 5: Solve for x
    x = 9,848,012,587.21/98,937.48
  6. Step 6: Final answer
    x = 99,537.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.