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Finding the Fourth Proportional to 101,465.06, 140,061.04 and 90,836.24

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Solution

The fourth proportional to 101,465.06, 140,061.04 and 90,836.24 is: 125,389.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,465.06 : 140,061.04 = 90,836.24 : x
  2. Step 2: Convert to fraction form
    101,465.06/140,061.04 = 90,836.24/x
  3. Step 3: Cross multiply
    101,465.06x = 140,061.04 × 90,836.24
  4. Step 4: Simplify right side
    101,465.06x = 12,722,618,244.09
  5. Step 5: Solve for x
    x = 12,722,618,244.09/101,465.06
  6. Step 6: Final answer
    x = 125,389.16

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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.