Home / 121,390.90-167,556.48-70,416.52

Finding the Fourth Proportional to 121,390.90, 167,556.48 and 70,416.52

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Solution

The fourth proportional to 121,390.90, 167,556.48 and 70,416.52 is: 97,196.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,390.90 : 167,556.48 = 70,416.52 : x
  2. Step 2: Convert to fraction form
    121,390.90/167,556.48 = 70,416.52/x
  3. Step 3: Cross multiply
    121,390.90x = 167,556.48 × 70,416.52
  4. Step 4: Simplify right side
    121,390.90x = 11,798,744,225.05
  5. Step 5: Solve for x
    x = 11,798,744,225.05/121,390.90
  6. Step 6: Final answer
    x = 97,196.28

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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.