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Finding the Fourth Proportional to 111,522.42, 153,905.40 and 63,775.08

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Solution

The fourth proportional to 111,522.42, 153,905.40 and 63,775.08 is: 88,012.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,522.42 : 153,905.40 = 63,775.08 : x
  2. Step 2: Convert to fraction form
    111,522.42/153,905.40 = 63,775.08/x
  3. Step 3: Cross multiply
    111,522.42x = 153,905.40 × 63,775.08
  4. Step 4: Simplify right side
    111,522.42x = 9,815,329,197.43
  5. Step 5: Solve for x
    x = 9,815,329,197.43/111,522.42
  6. Step 6: Final answer
    x = 88,012.16

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1.5x scale

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.