Home / 147,923.10-204,129.90-84,281.40

Finding the Fourth Proportional to 147,923.10, 204,129.90 and 84,281.40

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Solution

The fourth proportional to 147,923.10, 204,129.90 and 84,281.40 is: 116,306.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,923.10 : 204,129.90 = 84,281.40 : x
  2. Step 2: Convert to fraction form
    147,923.10/204,129.90 = 84,281.40/x
  3. Step 3: Cross multiply
    147,923.10x = 204,129.90 × 84,281.40
  4. Step 4: Simplify right side
    147,923.10x = 17,204,353,753.86
  5. Step 5: Solve for x
    x = 17,204,353,753.86/147,923.10
  6. Step 6: Final answer
    x = 116,306.07

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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.