Home / 101,212.41-139,666.89-55,889.26

Finding the Fourth Proportional to 101,212.41, 139,666.89 and 55,889.26

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Solution

The fourth proportional to 101,212.41, 139,666.89 and 55,889.26 is: 77,123.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,212.41 : 139,666.89 = 55,889.26 : x
  2. Step 2: Convert to fraction form
    101,212.41/139,666.89 = 55,889.26/x
  3. Step 3: Cross multiply
    101,212.41x = 139,666.89 × 55,889.26
  4. Step 4: Simplify right side
    101,212.41x = 7,805,879,128.60
  5. Step 5: Solve for x
    x = 7,805,879,128.60/101,212.41
  6. Step 6: Final answer
    x = 77,123.74

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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.