Home / 100,927.04-139,272.63-60,642.50

Finding the Fourth Proportional to 100,927.04, 139,272.63 and 60,642.50

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Solution

The fourth proportional to 100,927.04, 139,272.63 and 60,642.50 is: 83,682.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,927.04 : 139,272.63 = 60,642.50 : x
  2. Step 2: Convert to fraction form
    100,927.04/139,272.63 = 60,642.50/x
  3. Step 3: Cross multiply
    100,927.04x = 139,272.63 × 60,642.50
  4. Step 4: Simplify right side
    100,927.04x = 8,445,840,464.78
  5. Step 5: Solve for x
    x = 8,445,840,464.78/100,927.04
  6. Step 6: Final answer
    x = 83,682.63

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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.