Home / 110,427.72-152,351.42-72,209.64

Finding the Fourth Proportional to 110,427.72, 152,351.42 and 72,209.64

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Solution

The fourth proportional to 110,427.72, 152,351.42 and 72,209.64 is: 99,623.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,427.72 : 152,351.42 = 72,209.64 : x
  2. Step 2: Convert to fraction form
    110,427.72/152,351.42 = 72,209.64/x
  3. Step 3: Cross multiply
    110,427.72x = 152,351.42 × 72,209.64
  4. Step 4: Simplify right side
    110,427.72x = 11,001,241,191.69
  5. Step 5: Solve for x
    x = 11,001,241,191.69/110,427.72
  6. Step 6: Final answer
    x = 99,623.91

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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.