Home / 98,356.03-135,780.34-64,416.52

Finding the Fourth Proportional to 98,356.03, 135,780.34 and 64,416.52

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Solution

The fourth proportional to 98,356.03, 135,780.34 and 64,416.52 is: 88,926.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,356.03 : 135,780.34 = 64,416.52 : x
  2. Step 2: Convert to fraction form
    98,356.03/135,780.34 = 64,416.52/x
  3. Step 3: Cross multiply
    98,356.03x = 135,780.34 × 64,416.52
  4. Step 4: Simplify right side
    98,356.03x = 8,746,497,407.98
  5. Step 5: Solve for x
    x = 8,746,497,407.98/98,356.03
  6. Step 6: Final answer
    x = 88,926.91

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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.