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Finding the Fourth Proportional to 153,372.11, 211,598.72 and 88,806.11

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Solution

The fourth proportional to 153,372.11, 211,598.72 and 88,806.11 is: 122,520.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,372.11 : 211,598.72 = 88,806.11 : x
  2. Step 2: Convert to fraction form
    153,372.11/211,598.72 = 88,806.11/x
  3. Step 3: Cross multiply
    153,372.11x = 211,598.72 × 88,806.11
  4. Step 4: Simplify right side
    153,372.11x = 18,791,258,146.19
  5. Step 5: Solve for x
    x = 18,791,258,146.19/153,372.11
  6. Step 6: Final answer
    x = 122,520.70

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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.