Home / 98,682.20-136,182.87-55,663.74

Finding the Fourth Proportional to 98,682.20, 136,182.87 and 55,663.74

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Solution

The fourth proportional to 98,682.20, 136,182.87 and 55,663.74 is: 76,816.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,682.20 : 136,182.87 = 55,663.74 : x
  2. Step 2: Convert to fraction form
    98,682.20/136,182.87 = 55,663.74/x
  3. Step 3: Cross multiply
    98,682.20x = 136,182.87 × 55,663.74
  4. Step 4: Simplify right side
    98,682.20x = 7,580,447,868.13
  5. Step 5: Solve for x
    x = 7,580,447,868.13/98,682.20
  6. Step 6: Final answer
    x = 76,816.77

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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.