Home / 157,667.09-217,817.54-103,348.19

Finding the Fourth Proportional to 157,667.09, 217,817.54 and 103,348.19

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Solution

The fourth proportional to 157,667.09, 217,817.54 and 103,348.19 is: 142,775.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,667.09 : 217,817.54 = 103,348.19 : x
  2. Step 2: Convert to fraction form
    157,667.09/217,817.54 = 103,348.19/x
  3. Step 3: Cross multiply
    157,667.09x = 217,817.54 × 103,348.19
  4. Step 4: Simplify right side
    157,667.09x = 22,511,046,903.42
  5. Step 5: Solve for x
    x = 22,511,046,903.42/157,667.09
  6. Step 6: Final answer
    x = 142,775.82

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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.