Home / 121,572.03-167,797.40-71,287.23

Finding the Fourth Proportional to 121,572.03, 167,797.40 and 71,287.23

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Solution

The fourth proportional to 121,572.03, 167,797.40 and 71,287.23 is: 98,392.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,572.03 : 167,797.40 = 71,287.23 : x
  2. Step 2: Convert to fraction form
    121,572.03/167,797.40 = 71,287.23/x
  3. Step 3: Cross multiply
    121,572.03x = 167,797.40 × 71,287.23
  4. Step 4: Simplify right side
    121,572.03x = 11,961,811,490.77
  5. Step 5: Solve for x
    x = 11,961,811,490.77/121,572.03
  6. Step 6: Final answer
    x = 98,392.79

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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.