Home / 101,231.91-139,681.80-58,201.34

Finding the Fourth Proportional to 101,231.91, 139,681.80 and 58,201.34

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Solution

The fourth proportional to 101,231.91, 139,681.80 and 58,201.34 is: 80,307.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,231.91 : 139,681.80 = 58,201.34 : x
  2. Step 2: Convert to fraction form
    101,231.91/139,681.80 = 58,201.34/x
  3. Step 3: Cross multiply
    101,231.91x = 139,681.80 × 58,201.34
  4. Step 4: Simplify right side
    101,231.91x = 8,129,667,235.20
  5. Step 5: Solve for x
    x = 8,129,667,235.20/101,231.91
  6. Step 6: Final answer
    x = 80,307.36

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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.