Home / 101,020.05-139,350.60-63,228.69

Finding the Fourth Proportional to 101,020.05, 139,350.60 and 63,228.69

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Solution

The fourth proportional to 101,020.05, 139,350.60 and 63,228.69 is: 87,219.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,020.05 : 139,350.60 = 63,228.69 : x
  2. Step 2: Convert to fraction form
    101,020.05/139,350.60 = 63,228.69/x
  3. Step 3: Cross multiply
    101,020.05x = 139,350.60 × 63,228.69
  4. Step 4: Simplify right side
    101,020.05x = 8,810,955,888.71
  5. Step 5: Solve for x
    x = 8,810,955,888.71/101,020.05
  6. Step 6: Final answer
    x = 87,219.87

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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.