Home / 455,988.13-684,016.55-136,114.72

Finding the Fourth Proportional to 455,988.13, 684,016.55 and 136,114.72

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Solution

The fourth proportional to 455,988.13, 684,016.55 and 136,114.72 is: 204,182.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,988.13 : 684,016.55 = 136,114.72 : x
  2. Step 2: Convert to fraction form
    455,988.13/684,016.55 = 136,114.72/x
  3. Step 3: Cross multiply
    455,988.13x = 684,016.55 × 136,114.72
  4. Step 4: Simplify right side
    455,988.13x = 93,104,721,178.62
  5. Step 5: Solve for x
    x = 93,104,721,178.62/455,988.13
  6. Step 6: Final answer
    x = 204,182.34

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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.