Home / 121,389.03-167,504.76-73,639.53

Finding the Fourth Proportional to 121,389.03, 167,504.76 and 73,639.53

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Solution

The fourth proportional to 121,389.03, 167,504.76 and 73,639.53 is: 101,615.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,389.03 : 167,504.76 = 73,639.53 : x
  2. Step 2: Convert to fraction form
    121,389.03/167,504.76 = 73,639.53/x
  3. Step 3: Cross multiply
    121,389.03x = 167,504.76 × 73,639.53
  4. Step 4: Simplify right side
    121,389.03x = 12,334,971,799.16
  5. Step 5: Solve for x
    x = 12,334,971,799.16/121,389.03
  6. Step 6: Final answer
    x = 101,615.21

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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.