Home / 147,004.70-220,228.85-86,853.32

Finding the Fourth Proportional to 147,004.70, 220,228.85 and 86,853.32

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Solution

The fourth proportional to 147,004.70, 220,228.85 and 86,853.32 is: 130,115.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,004.70 : 220,228.85 = 86,853.32 : x
  2. Step 2: Convert to fraction form
    147,004.70/220,228.85 = 86,853.32/x
  3. Step 3: Cross multiply
    147,004.70x = 220,228.85 × 86,853.32
  4. Step 4: Simplify right side
    147,004.70x = 19,127,605,898.27
  5. Step 5: Solve for x
    x = 19,127,605,898.27/147,004.70
  6. Step 6: Final answer
    x = 130,115.61

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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.