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Finding the Fourth Proportional to 121,741.71, 168,000.37 and 68,027.10

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Solution

The fourth proportional to 121,741.71, 168,000.37 and 68,027.10 is: 93,875.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,741.71 : 168,000.37 = 68,027.10 : x
  2. Step 2: Convert to fraction form
    121,741.71/168,000.37 = 68,027.10/x
  3. Step 3: Cross multiply
    121,741.71x = 168,000.37 × 68,027.10
  4. Step 4: Simplify right side
    121,741.71x = 11,428,577,970.03
  5. Step 5: Solve for x
    x = 11,428,577,970.03/121,741.71
  6. Step 6: Final answer
    x = 93,875.62

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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.