Home / 154,768.50-213,580.62-91,145.52

Finding the Fourth Proportional to 154,768.50, 213,580.62 and 91,145.52

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Solution

The fourth proportional to 154,768.50, 213,580.62 and 91,145.52 is: 125,780.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,768.50 : 213,580.62 = 91,145.52 : x
  2. Step 2: Convert to fraction form
    154,768.50/213,580.62 = 91,145.52/x
  3. Step 3: Cross multiply
    154,768.50x = 213,580.62 × 91,145.52
  4. Step 4: Simplify right side
    154,768.50x = 19,466,916,671.82
  5. Step 5: Solve for x
    x = 19,466,916,671.82/154,768.50
  6. Step 6: Final answer
    x = 125,780.87

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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.