Home / 121,257.76-167,259.60-83,466.40

Finding the Fourth Proportional to 121,257.76, 167,259.60 and 83,466.40

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Solution

The fourth proportional to 121,257.76, 167,259.60 and 83,466.40 is: 115,131.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,257.76 : 167,259.60 = 83,466.40 : x
  2. Step 2: Convert to fraction form
    121,257.76/167,259.60 = 83,466.40/x
  3. Step 3: Cross multiply
    121,257.76x = 167,259.60 × 83,466.40
  4. Step 4: Simplify right side
    121,257.76x = 13,960,556,677.44
  5. Step 5: Solve for x
    x = 13,960,556,677.44/121,257.76
  6. Step 6: Final answer
    x = 115,131.24

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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.