Home / 121,308.42-167,409.14-70,321.36

Finding the Fourth Proportional to 121,308.42, 167,409.14 and 70,321.36

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Solution

The fourth proportional to 121,308.42, 167,409.14 and 70,321.36 is: 97,045.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,308.42 : 167,409.14 = 70,321.36 : x
  2. Step 2: Convert to fraction form
    121,308.42/167,409.14 = 70,321.36/x
  3. Step 3: Cross multiply
    121,308.42x = 167,409.14 × 70,321.36
  4. Step 4: Simplify right side
    121,308.42x = 11,772,438,401.23
  5. Step 5: Solve for x
    x = 11,772,438,401.23/121,308.42
  6. Step 6: Final answer
    x = 97,045.52

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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.