Home / 121,211.89-167,301.84-70,216.36

Finding the Fourth Proportional to 121,211.89, 167,301.84 and 70,216.36

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Solution

The fourth proportional to 121,211.89, 167,301.84 and 70,216.36 is: 96,915.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,211.89 : 167,301.84 = 70,216.36 : x
  2. Step 2: Convert to fraction form
    121,211.89/167,301.84 = 70,216.36/x
  3. Step 3: Cross multiply
    121,211.89x = 167,301.84 × 70,216.36
  4. Step 4: Simplify right side
    121,211.89x = 11,747,326,226.10
  5. Step 5: Solve for x
    x = 11,747,326,226.10/121,211.89
  6. Step 6: Final answer
    x = 96,915.63

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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.