Home / 121,227.46-167,248.64-121,040.58

Finding the Fourth Proportional to 121,227.46, 167,248.64 and 121,040.58

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Solution

The fourth proportional to 121,227.46, 167,248.64 and 121,040.58 is: 166,990.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,227.46 : 167,248.64 = 121,040.58 : x
  2. Step 2: Convert to fraction form
    121,227.46/167,248.64 = 121,040.58/x
  3. Step 3: Cross multiply
    121,227.46x = 167,248.64 × 121,040.58
  4. Step 4: Simplify right side
    121,227.46x = 20,243,872,389.81
  5. Step 5: Solve for x
    x = 20,243,872,389.81/121,227.46
  6. Step 6: Final answer
    x = 166,990.82

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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.