Home / 136,700.06-188,645.81-76,267.10

Finding the Fourth Proportional to 136,700.06, 188,645.81 and 76,267.10

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Solution

The fourth proportional to 136,700.06, 188,645.81 and 76,267.10 is: 105,248.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,700.06 : 188,645.81 = 76,267.10 : x
  2. Step 2: Convert to fraction form
    136,700.06/188,645.81 = 76,267.10/x
  3. Step 3: Cross multiply
    136,700.06x = 188,645.81 × 76,267.10
  4. Step 4: Simplify right side
    136,700.06x = 14,387,467,531.29
  5. Step 5: Solve for x
    x = 14,387,467,531.29/136,700.06
  6. Step 6: Final answer
    x = 105,248.44

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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.