Home / 100,927.29-139,272.98-60,642.75

Finding the Fourth Proportional to 100,927.29, 139,272.98 and 60,642.75

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Solution

The fourth proportional to 100,927.29, 139,272.98 and 60,642.75 is: 83,682.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,927.29 : 139,272.98 = 60,642.75 : x
  2. Step 2: Convert to fraction form
    100,927.29/139,272.98 = 60,642.75/x
  3. Step 3: Cross multiply
    100,927.29x = 139,272.98 × 60,642.75
  4. Step 4: Simplify right side
    100,927.29x = 8,445,896,204.68
  5. Step 5: Solve for x
    x = 8,445,896,204.68/100,927.29
  6. Step 6: Final answer
    x = 83,682.98

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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.