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Finding the Fourth Proportional to 84,703.74, 127,213.56 and 74,575.69

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Solution

The fourth proportional to 84,703.74, 127,213.56 and 74,575.69 is: 112,002.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,703.74 : 127,213.56 = 74,575.69 : x
  2. Step 2: Convert to fraction form
    84,703.74/127,213.56 = 74,575.69/x
  3. Step 3: Cross multiply
    84,703.74x = 127,213.56 × 74,575.69
  4. Step 4: Simplify right side
    84,703.74x = 9,487,039,014.36
  5. Step 5: Solve for x
    x = 9,487,039,014.36/84,703.74
  6. Step 6: Final answer
    x = 112,002.60

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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.