Home / 98,933.10-136,534.38-55,897.68

Finding the Fourth Proportional to 98,933.10, 136,534.38 and 55,897.68

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Solution

The fourth proportional to 98,933.10, 136,534.38 and 55,897.68 is: 77,142.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,933.10 : 136,534.38 = 55,897.68 : x
  2. Step 2: Convert to fraction form
    98,933.10/136,534.38 = 55,897.68/x
  3. Step 3: Cross multiply
    98,933.10x = 136,534.38 × 55,897.68
  4. Step 4: Simplify right side
    98,933.10x = 7,631,955,082.24
  5. Step 5: Solve for x
    x = 7,631,955,082.24/98,933.10
  6. Step 6: Final answer
    x = 77,142.59

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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.