Home / 102,768.12-154,058.70-39,547.92

Finding the Fourth Proportional to 102,768.12, 154,058.70 and 39,547.92

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Solution

The fourth proportional to 102,768.12, 154,058.70 and 39,547.92 is: 59,285.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,768.12 : 154,058.70 = 39,547.92 : x
  2. Step 2: Convert to fraction form
    102,768.12/154,058.70 = 39,547.92/x
  3. Step 3: Cross multiply
    102,768.12x = 154,058.70 × 39,547.92
  4. Step 4: Simplify right side
    102,768.12x = 6,092,701,142.90
  5. Step 5: Solve for x
    x = 6,092,701,142.90/102,768.12
  6. Step 6: Final answer
    x = 59,285.91

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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.