Home / 121,501.04-167,671.56-71,200

Finding the Fourth Proportional to 121,501.04, 167,671.56 and 71,200

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Solution

The fourth proportional to 121,501.04, 167,671.56 and 71,200 is: 98,256.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,501.04 : 167,671.56 = 71,200 : x
  2. Step 2: Convert to fraction form
    121,501.04/167,671.56 = 71,200/x
  3. Step 3: Cross multiply
    121,501.04x = 167,671.56 × 71,200
  4. Step 4: Simplify right side
    121,501.04x = 11,938,215,072
  5. Step 5: Solve for x
    x = 11,938,215,072/121,501.04
  6. Step 6: Final answer
    x = 98,256.07

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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.