Home / 153,844.56-212,305.38-86,776.56

Finding the Fourth Proportional to 153,844.56, 212,305.38 and 86,776.56

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Solution

The fourth proportional to 153,844.56, 212,305.38 and 86,776.56 is: 119,751.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,844.56 : 212,305.38 = 86,776.56 : x
  2. Step 2: Convert to fraction form
    153,844.56/212,305.38 = 86,776.56/x
  3. Step 3: Cross multiply
    153,844.56x = 212,305.38 × 86,776.56
  4. Step 4: Simplify right side
    153,844.56x = 18,423,130,545.89
  5. Step 5: Solve for x
    x = 18,423,130,545.89/153,844.56
  6. Step 6: Final answer
    x = 119,751.59

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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.