Home / 98,890.56-136,482.18-55,878.96

Finding the Fourth Proportional to 98,890.56, 136,482.18 and 55,878.96

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Solution

The fourth proportional to 98,890.56, 136,482.18 and 55,878.96 is: 77,120.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,890.56 : 136,482.18 = 55,878.96 : x
  2. Step 2: Convert to fraction form
    98,890.56/136,482.18 = 55,878.96/x
  3. Step 3: Cross multiply
    98,890.56x = 136,482.18 × 55,878.96
  4. Step 4: Simplify right side
    98,890.56x = 7,626,482,276.93
  5. Step 5: Solve for x
    x = 7,626,482,276.93/98,890.56
  6. Step 6: Final answer
    x = 77,120.43

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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.