Home / 100,926.54-139,271.94-60,642

Finding the Fourth Proportional to 100,926.54, 139,271.94 and 60,642

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Solution

The fourth proportional to 100,926.54, 139,271.94 and 60,642 is: 83,681.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,926.54 : 139,271.94 = 60,642 : x
  2. Step 2: Convert to fraction form
    100,926.54/139,271.94 = 60,642/x
  3. Step 3: Cross multiply
    100,926.54x = 139,271.94 × 60,642
  4. Step 4: Simplify right side
    100,926.54x = 8,445,728,985.48
  5. Step 5: Solve for x
    x = 8,445,728,985.48/100,926.54
  6. Step 6: Final answer
    x = 83,681.94

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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.