Home / 312,475.11-468,736.95-102,134.31

Finding the Fourth Proportional to 312,475.11, 468,736.95 and 102,134.31

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Solution

The fourth proportional to 312,475.11, 468,736.95 and 102,134.31 is: 153,209.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,475.11 : 468,736.95 = 102,134.31 : x
  2. Step 2: Convert to fraction form
    312,475.11/468,736.95 = 102,134.31/x
  3. Step 3: Cross multiply
    312,475.11x = 468,736.95 × 102,134.31
  4. Step 4: Simplify right side
    312,475.11x = 47,874,124,959.75
  5. Step 5: Solve for x
    x = 47,874,124,959.75/312,475.11
  6. Step 6: Final answer
    x = 153,209.40

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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.