Home / 101,211.41-139,665.51-55,888.26

Finding the Fourth Proportional to 101,211.41, 139,665.51 and 55,888.26

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Solution

The fourth proportional to 101,211.41, 139,665.51 and 55,888.26 is: 77,122.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,211.41 : 139,665.51 = 55,888.26 : x
  2. Step 2: Convert to fraction form
    101,211.41/139,665.51 = 55,888.26/x
  3. Step 3: Cross multiply
    101,211.41x = 139,665.51 × 55,888.26
  4. Step 4: Simplify right side
    101,211.41x = 7,805,662,335.91
  5. Step 5: Solve for x
    x = 7,805,662,335.91/101,211.41
  6. Step 6: Final answer
    x = 77,122.36

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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.