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Finding the Fourth Proportional to 147,150.60, 203,061.70 and 83,491.89

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Solution

The fourth proportional to 147,150.60, 203,061.70 and 83,491.89 is: 115,215.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,150.60 : 203,061.70 = 83,491.89 : x
  2. Step 2: Convert to fraction form
    147,150.60/203,061.70 = 83,491.89/x
  3. Step 3: Cross multiply
    147,150.60x = 203,061.70 × 83,491.89
  4. Step 4: Simplify right side
    147,150.60x = 16,954,005,119.61
  5. Step 5: Solve for x
    x = 16,954,005,119.61/147,150.60
  6. Step 6: Final answer
    x = 115,215.33

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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.