Home / 157,427.98-217,244.28-85,806.52

Finding the Fourth Proportional to 157,427.98, 217,244.28 and 85,806.52

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Solution

The fourth proportional to 157,427.98, 217,244.28 and 85,806.52 is: 118,409.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,427.98 : 217,244.28 = 85,806.52 : x
  2. Step 2: Convert to fraction form
    157,427.98/217,244.28 = 85,806.52/x
  3. Step 3: Cross multiply
    157,427.98x = 217,244.28 × 85,806.52
  4. Step 4: Simplify right side
    157,427.98x = 18,640,975,656.71
  5. Step 5: Solve for x
    x = 18,640,975,656.71/157,427.98
  6. Step 6: Final answer
    x = 118,409.55

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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.