Home / 121,205.16-167,252.04-89,391.60

Finding the Fourth Proportional to 121,205.16, 167,252.04 and 89,391.60

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Solution

The fourth proportional to 121,205.16, 167,252.04 and 89,391.60 is: 123,352.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,205.16 : 167,252.04 = 89,391.60 : x
  2. Step 2: Convert to fraction form
    121,205.16/167,252.04 = 89,391.60/x
  3. Step 3: Cross multiply
    121,205.16x = 167,252.04 × 89,391.60
  4. Step 4: Simplify right side
    121,205.16x = 14,950,927,458.86
  5. Step 5: Solve for x
    x = 14,950,927,458.86/121,205.16
  6. Step 6: Final answer
    x = 123,352.24

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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.