Home / 134,934.04-186,187.98-78,335.56

Finding the Fourth Proportional to 134,934.04, 186,187.98 and 78,335.56

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Solution

The fourth proportional to 134,934.04, 186,187.98 and 78,335.56 is: 108,090.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,934.04 : 186,187.98 = 78,335.56 : x
  2. Step 2: Convert to fraction form
    134,934.04/186,187.98 = 78,335.56/x
  3. Step 3: Cross multiply
    134,934.04x = 186,187.98 × 78,335.56
  4. Step 4: Simplify right side
    134,934.04x = 14,585,139,678.57
  5. Step 5: Solve for x
    x = 14,585,139,678.57/134,934.04
  6. Step 6: Final answer
    x = 108,090.88

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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.