Home / 98,292.12-146,722.98-90,989.16

Finding the Fourth Proportional to 98,292.12, 146,722.98 and 90,989.16

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Solution

The fourth proportional to 98,292.12, 146,722.98 and 90,989.16 is: 135,821.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,292.12 : 146,722.98 = 90,989.16 : x
  2. Step 2: Convert to fraction form
    98,292.12/146,722.98 = 90,989.16/x
  3. Step 3: Cross multiply
    98,292.12x = 146,722.98 × 90,989.16
  4. Step 4: Simplify right side
    98,292.12x = 13,350,200,702.90
  5. Step 5: Solve for x
    x = 13,350,200,702.90/98,292.12
  6. Step 6: Final answer
    x = 135,821.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.