Home / 258,526.76-387,787.23-100,865.93

Finding the Fourth Proportional to 258,526.76, 387,787.23 and 100,865.93

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Solution

The fourth proportional to 258,526.76, 387,787.23 and 100,865.93 is: 151,297.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,526.76 : 387,787.23 = 100,865.93 : x
  2. Step 2: Convert to fraction form
    258,526.76/387,787.23 = 100,865.93/x
  3. Step 3: Cross multiply
    258,526.76x = 387,787.23 × 100,865.93
  4. Step 4: Simplify right side
    258,526.76x = 39,114,517,657.14
  5. Step 5: Solve for x
    x = 39,114,517,657.14/258,526.76
  6. Step 6: Final answer
    x = 151,297.76

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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.