Home / 136,740.02-188,693.35-76,305.92

Finding the Fourth Proportional to 136,740.02, 188,693.35 and 76,305.92

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Solution

The fourth proportional to 136,740.02, 188,693.35 and 76,305.92 is: 105,297.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,740.02 : 188,693.35 = 76,305.92 : x
  2. Step 2: Convert to fraction form
    136,740.02/188,693.35 = 76,305.92/x
  3. Step 3: Cross multiply
    136,740.02x = 188,693.35 × 76,305.92
  4. Step 4: Simplify right side
    136,740.02x = 14,398,418,535.40
  5. Step 5: Solve for x
    x = 14,398,418,535.40/136,740.02
  6. Step 6: Final answer
    x = 105,297.77

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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.