Home / 98,211.90-147,203.55-56,121.48

Finding the Fourth Proportional to 98,211.90, 147,203.55 and 56,121.48

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Solution

The fourth proportional to 98,211.90, 147,203.55 and 56,121.48 is: 84,116.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,211.90 : 147,203.55 = 56,121.48 : x
  2. Step 2: Convert to fraction form
    98,211.90/147,203.55 = 56,121.48/x
  3. Step 3: Cross multiply
    98,211.90x = 147,203.55 × 56,121.48
  4. Step 4: Simplify right side
    98,211.90x = 8,261,281,087.25
  5. Step 5: Solve for x
    x = 8,261,281,087.25/98,211.90
  6. Step 6: Final answer
    x = 84,116.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.