Home / 101,271.27-139,557.02-72,923.43

Finding the Fourth Proportional to 101,271.27, 139,557.02 and 72,923.43

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Solution

The fourth proportional to 101,271.27, 139,557.02 and 72,923.43 is: 100,492.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,271.27 : 139,557.02 = 72,923.43 : x
  2. Step 2: Convert to fraction form
    101,271.27/139,557.02 = 72,923.43/x
  3. Step 3: Cross multiply
    101,271.27x = 139,557.02 × 72,923.43
  4. Step 4: Simplify right side
    101,271.27x = 10,176,976,214.36
  5. Step 5: Solve for x
    x = 10,176,976,214.36/101,271.27
  6. Step 6: Final answer
    x = 100,492.23

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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.