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Finding the Fourth Proportional to 110,111.76, 151,809.63 and 79,459.13

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Solution

The fourth proportional to 110,111.76, 151,809.63 and 79,459.13 is: 109,549.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,111.76 : 151,809.63 = 79,459.13 : x
  2. Step 2: Convert to fraction form
    110,111.76/151,809.63 = 79,459.13/x
  3. Step 3: Cross multiply
    110,111.76x = 151,809.63 × 79,459.13
  4. Step 4: Simplify right side
    110,111.76x = 12,062,661,125.42
  5. Step 5: Solve for x
    x = 12,062,661,125.42/110,111.76
  6. Step 6: Final answer
    x = 109,549.25

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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.