Home / 138,622.52-191,301.06-84,887.92

Finding the Fourth Proportional to 138,622.52, 191,301.06 and 84,887.92

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Solution

The fourth proportional to 138,622.52, 191,301.06 and 84,887.92 is: 117,146.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,622.52 : 191,301.06 = 84,887.92 : x
  2. Step 2: Convert to fraction form
    138,622.52/191,301.06 = 84,887.92/x
  3. Step 3: Cross multiply
    138,622.52x = 191,301.06 × 84,887.92
  4. Step 4: Simplify right side
    138,622.52x = 16,239,149,077.20
  5. Step 5: Solve for x
    x = 16,239,149,077.20/138,622.52
  6. Step 6: Final answer
    x = 117,146.54

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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.