Home / 101,219.24-139,683.66-55,897.14

Finding the Fourth Proportional to 101,219.24, 139,683.66 and 55,897.14

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Solution

The fourth proportional to 101,219.24, 139,683.66 and 55,897.14 is: 77,138.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,219.24 : 139,683.66 = 55,897.14 : x
  2. Step 2: Convert to fraction form
    101,219.24/139,683.66 = 55,897.14/x
  3. Step 3: Cross multiply
    101,219.24x = 139,683.66 × 55,897.14
  4. Step 4: Simplify right side
    101,219.24x = 7,807,917,098.73
  5. Step 5: Solve for x
    x = 7,807,917,098.73/101,219.24
  6. Step 6: Final answer
    x = 77,138.67

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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.