Home / 142,079.70-196,095.40-84,722.74

Finding the Fourth Proportional to 142,079.70, 196,095.40 and 84,722.74

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Solution

The fourth proportional to 142,079.70, 196,095.40 and 84,722.74 is: 116,932.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,079.70 : 196,095.40 = 84,722.74 : x
  2. Step 2: Convert to fraction form
    142,079.70/196,095.40 = 84,722.74/x
  3. Step 3: Cross multiply
    142,079.70x = 196,095.40 × 84,722.74
  4. Step 4: Simplify right side
    142,079.70x = 16,613,739,589.40
  5. Step 5: Solve for x
    x = 16,613,739,589.40/142,079.70
  6. Step 6: Final answer
    x = 116,932.54

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1.5x scale

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.