Home / 117,853.09-162,632.40-64,138.21

Finding the Fourth Proportional to 117,853.09, 162,632.40 and 64,138.21

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Solution

The fourth proportional to 117,853.09, 162,632.40 and 64,138.21 is: 88,508.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,853.09 : 162,632.40 = 64,138.21 : x
  2. Step 2: Convert to fraction form
    117,853.09/162,632.40 = 64,138.21/x
  3. Step 3: Cross multiply
    117,853.09x = 162,632.40 × 64,138.21
  4. Step 4: Simplify right side
    117,853.09x = 10,430,951,024.00
  5. Step 5: Solve for x
    x = 10,430,951,024.00/117,853.09
  6. Step 6: Final answer
    x = 88,508.08

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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.