Home / 177,515.14-266,117.18-66,784.90

Finding the Fourth Proportional to 177,515.14, 266,117.18 and 66,784.90

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Solution

The fourth proportional to 177,515.14, 266,117.18 and 66,784.90 is: 100,118.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,515.14 : 266,117.18 = 66,784.90 : x
  2. Step 2: Convert to fraction form
    177,515.14/266,117.18 = 66,784.90/x
  3. Step 3: Cross multiply
    177,515.14x = 266,117.18 × 66,784.90
  4. Step 4: Simplify right side
    177,515.14x = 17,772,609,254.58
  5. Step 5: Solve for x
    x = 17,772,609,254.58/177,515.14
  6. Step 6: Final answer
    x = 100,118.84

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.