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Finding the Fourth Proportional to 121,461.50, 167,617.17 and 67,750.00

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Solution

The fourth proportional to 121,461.50, 167,617.17 and 67,750.00 is: 93,495.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,461.50 : 167,617.17 = 67,750.00 : x
  2. Step 2: Convert to fraction form
    121,461.50/167,617.17 = 67,750.00/x
  3. Step 3: Cross multiply
    121,461.50x = 167,617.17 × 67,750.00
  4. Step 4: Simplify right side
    121,461.50x = 11,356,062,848.46
  5. Step 5: Solve for x
    x = 11,356,062,848.46/121,461.50
  6. Step 6: Final answer
    x = 93,495.16

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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.