Home / 121,114.12-167,130.33-70,123.21

Finding the Fourth Proportional to 121,114.12, 167,130.33 and 70,123.21

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Solution

The fourth proportional to 121,114.12, 167,130.33 and 70,123.21 is: 96,765.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,114.12 : 167,130.33 = 70,123.21 : x
  2. Step 2: Convert to fraction form
    121,114.12/167,130.33 = 70,123.21/x
  3. Step 3: Cross multiply
    121,114.12x = 167,130.33 × 70,123.21
  4. Step 4: Simplify right side
    121,114.12x = 11,719,715,227.96
  5. Step 5: Solve for x
    x = 11,719,715,227.96/121,114.12
  6. Step 6: Final answer
    x = 96,765.89

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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.