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Finding the Fourth Proportional to 145,442.79, 200,624.04 and 88,755.75

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Solution

The fourth proportional to 145,442.79, 200,624.04 and 88,755.75 is: 122,429.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,442.79 : 200,624.04 = 88,755.75 : x
  2. Step 2: Convert to fraction form
    145,442.79/200,624.04 = 88,755.75/x
  3. Step 3: Cross multiply
    145,442.79x = 200,624.04 × 88,755.75
  4. Step 4: Simplify right side
    145,442.79x = 17,806,537,138.23
  5. Step 5: Solve for x
    x = 17,806,537,138.23/145,442.79
  6. Step 6: Final answer
    x = 122,429.84

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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.