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Finding the Fourth Proportional to 128,810.42, 193,197.16 and 62,232.67

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Solution

The fourth proportional to 128,810.42, 193,197.16 and 62,232.67 is: 93,340.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,810.42 : 193,197.16 = 62,232.67 : x
  2. Step 2: Convert to fraction form
    128,810.42/193,197.16 = 62,232.67/x
  3. Step 3: Cross multiply
    128,810.42x = 193,197.16 × 62,232.67
  4. Step 4: Simplify right side
    128,810.42x = 12,023,175,422.50
  5. Step 5: Solve for x
    x = 12,023,175,422.50/128,810.42
  6. Step 6: Final answer
    x = 93,340.08

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.