Home / 105,108.78-157,658.76-48,929.58

Finding the Fourth Proportional to 105,108.78, 157,658.76 and 48,929.58

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Solution

The fourth proportional to 105,108.78, 157,658.76 and 48,929.58 is: 73,392.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,108.78 : 157,658.76 = 48,929.58 : x
  2. Step 2: Convert to fraction form
    105,108.78/157,658.76 = 48,929.58/x
  3. Step 3: Cross multiply
    105,108.78x = 157,658.76 × 48,929.58
  4. Step 4: Simplify right side
    105,108.78x = 7,714,176,910.12
  5. Step 5: Solve for x
    x = 7,714,176,910.12/105,108.78
  6. Step 6: Final answer
    x = 73,392.32

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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.