Home / 157,427.84-217,250.55-85,806.42

Finding the Fourth Proportional to 157,427.84, 217,250.55 and 85,806.42

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Solution

The fourth proportional to 157,427.84, 217,250.55 and 85,806.42 is: 118,412.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,427.84 : 217,250.55 = 85,806.42 : x
  2. Step 2: Convert to fraction form
    157,427.84/217,250.55 = 85,806.42/x
  3. Step 3: Cross multiply
    157,427.84x = 217,250.55 × 85,806.42
  4. Step 4: Simplify right side
    157,427.84x = 18,641,491,938.53
  5. Step 5: Solve for x
    x = 18,641,491,938.53/157,427.84
  6. Step 6: Final answer
    x = 118,412.93

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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.