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Finding the Fourth Proportional to 157,150.59, 216,860.67 and 85,530.39

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Solution

The fourth proportional to 157,150.59, 216,860.67 and 85,530.39 is: 118,028.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,150.59 : 216,860.67 = 85,530.39 : x
  2. Step 2: Convert to fraction form
    157,150.59/216,860.67 = 85,530.39/x
  3. Step 3: Cross multiply
    157,150.59x = 216,860.67 × 85,530.39
  4. Step 4: Simplify right side
    157,150.59x = 18,548,177,680.76
  5. Step 5: Solve for x
    x = 18,548,177,680.76/157,150.59
  6. Step 6: Final answer
    x = 118,028.05

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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.