Home / 121,526.44-167,720.98-71,225.40

Finding the Fourth Proportional to 121,526.44, 167,720.98 and 71,225.40

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Solution

The fourth proportional to 121,526.44, 167,720.98 and 71,225.40 is: 98,299.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,526.44 : 167,720.98 = 71,225.40 : x
  2. Step 2: Convert to fraction form
    121,526.44/167,720.98 = 71,225.40/x
  3. Step 3: Cross multiply
    121,526.44x = 167,720.98 × 71,225.40
  4. Step 4: Simplify right side
    121,526.44x = 11,945,993,888.89
  5. Step 5: Solve for x
    x = 11,945,993,888.89/121,526.44
  6. Step 6: Final answer
    x = 98,299.55

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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.