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Finding the Fourth Proportional to 151,515.75, 209,098.23 and 84,447.75

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Solution

The fourth proportional to 151,515.75, 209,098.23 and 84,447.75 is: 116,541.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,515.75 : 209,098.23 = 84,447.75 : x
  2. Step 2: Convert to fraction form
    151,515.75/209,098.23 = 84,447.75/x
  3. Step 3: Cross multiply
    151,515.75x = 209,098.23 × 84,447.75
  4. Step 4: Simplify right side
    151,515.75x = 17,657,875,052.48
  5. Step 5: Solve for x
    x = 17,657,875,052.48/151,515.75
  6. Step 6: Final answer
    x = 116,541.52

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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.