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Finding the Fourth Proportional to 101,079.10, 151,618.65 and 99,110.80

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Solution

The fourth proportional to 101,079.10, 151,618.65 and 99,110.80 is: 148,666.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,079.10 : 151,618.65 = 99,110.80 : x
  2. Step 2: Convert to fraction form
    101,079.10/151,618.65 = 99,110.80/x
  3. Step 3: Cross multiply
    101,079.10x = 151,618.65 × 99,110.80
  4. Step 4: Simplify right side
    101,079.10x = 15,027,045,696.42
  5. Step 5: Solve for x
    x = 15,027,045,696.42/101,079.10
  6. Step 6: Final answer
    x = 148,666.20

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1.5x scale

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.