Home / 98,787.48-148,205.52-28,665.78

Finding the Fourth Proportional to 98,787.48, 148,205.52 and 28,665.78

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Solution

The fourth proportional to 98,787.48, 148,205.52 and 28,665.78 is: 43,005.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,787.48 : 148,205.52 = 28,665.78 : x
  2. Step 2: Convert to fraction form
    98,787.48/148,205.52 = 28,665.78/x
  3. Step 3: Cross multiply
    98,787.48x = 148,205.52 × 28,665.78
  4. Step 4: Simplify right side
    98,787.48x = 4,248,426,831.11
  5. Step 5: Solve for x
    x = 4,248,426,831.11/98,787.48
  6. Step 6: Final answer
    x = 43,005.72

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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.