Home / 157,074.89-216,757.01-85,455.18

Finding the Fourth Proportional to 157,074.89, 216,757.01 and 85,455.18

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Solution

The fourth proportional to 157,074.89, 216,757.01 and 85,455.18 is: 117,924.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,074.89 : 216,757.01 = 85,455.18 : x
  2. Step 2: Convert to fraction form
    157,074.89/216,757.01 = 85,455.18/x
  3. Step 3: Cross multiply
    157,074.89x = 216,757.01 × 85,455.18
  4. Step 4: Simplify right side
    157,074.89x = 18,523,008,878.54
  5. Step 5: Solve for x
    x = 18,523,008,878.54/157,074.89
  6. Step 6: Final answer
    x = 117,924.70

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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.