Home / 121,326.46-167,430.90-70,349.20

Finding the Fourth Proportional to 121,326.46, 167,430.90 and 70,349.20

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Solution

The fourth proportional to 121,326.46, 167,430.90 and 70,349.20 is: 97,082.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,326.46 : 167,430.90 = 70,349.20 : x
  2. Step 2: Convert to fraction form
    121,326.46/167,430.90 = 70,349.20/x
  3. Step 3: Cross multiply
    121,326.46x = 167,430.90 × 70,349.20
  4. Step 4: Simplify right side
    121,326.46x = 11,778,629,870.28
  5. Step 5: Solve for x
    x = 11,778,629,870.28/121,326.46
  6. Step 6: Final answer
    x = 97,082.12

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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.