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Finding the Fourth Proportional to 121,594.60, 167,703.78 and 89,972.20

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Solution

The fourth proportional to 121,594.60, 167,703.78 and 89,972.20 is: 124,090.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,594.60 : 167,703.78 = 89,972.20 : x
  2. Step 2: Convert to fraction form
    121,594.60/167,703.78 = 89,972.20/x
  3. Step 3: Cross multiply
    121,594.60x = 167,703.78 × 89,972.20
  4. Step 4: Simplify right side
    121,594.60x = 15,088,678,034.92
  5. Step 5: Solve for x
    x = 15,088,678,034.92/121,594.60
  6. Step 6: Final answer
    x = 124,090.03

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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.