Home / 100,773.04-139,124.40-66,827.68

Finding the Fourth Proportional to 100,773.04, 139,124.40 and 66,827.68

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Solution

The fourth proportional to 100,773.04, 139,124.40 and 66,827.68 is: 92,260.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,773.04 : 139,124.40 = 66,827.68 : x
  2. Step 2: Convert to fraction form
    100,773.04/139,124.40 = 66,827.68/x
  3. Step 3: Cross multiply
    100,773.04x = 139,124.40 × 66,827.68
  4. Step 4: Simplify right side
    100,773.04x = 9,297,360,883.39
  5. Step 5: Solve for x
    x = 9,297,360,883.39/100,773.04
  6. Step 6: Final answer
    x = 92,260.40

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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.