Home / 90,246.25-124,261.65-80,157.16

Finding the Fourth Proportional to 90,246.25, 124,261.65 and 80,157.16

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Solution

The fourth proportional to 90,246.25, 124,261.65 and 80,157.16 is: 110,369.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,246.25 : 124,261.65 = 80,157.16 : x
  2. Step 2: Convert to fraction form
    90,246.25/124,261.65 = 80,157.16/x
  3. Step 3: Cross multiply
    90,246.25x = 124,261.65 × 80,157.16
  4. Step 4: Simplify right side
    90,246.25x = 9,960,460,960.91
  5. Step 5: Solve for x
    x = 9,960,460,960.91/90,246.25
  6. Step 6: Final answer
    x = 110,369.80

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1.5x scale

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.