Home / 121,574.03-167,800.16-71,289.23

Finding the Fourth Proportional to 121,574.03, 167,800.16 and 71,289.23

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Solution

The fourth proportional to 121,574.03, 167,800.16 and 71,289.23 is: 98,395.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,574.03 : 167,800.16 = 71,289.23 : x
  2. Step 2: Convert to fraction form
    121,574.03/167,800.16 = 71,289.23/x
  3. Step 3: Cross multiply
    121,574.03x = 167,800.16 × 71,289.23
  4. Step 4: Simplify right side
    121,574.03x = 11,962,344,200.28
  5. Step 5: Solve for x
    x = 11,962,344,200.28/121,574.03
  6. Step 6: Final answer
    x = 98,395.56

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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.