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Finding the Fourth Proportional to 101,918.40, 152,877.60 and 99,002.40

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Solution

The fourth proportional to 101,918.40, 152,877.60 and 99,002.40 is: 148,503.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,918.40 : 152,877.60 = 99,002.40 : x
  2. Step 2: Convert to fraction form
    101,918.40/152,877.60 = 99,002.40/x
  3. Step 3: Cross multiply
    101,918.40x = 152,877.60 × 99,002.40
  4. Step 4: Simplify right side
    101,918.40x = 15,135,249,306.24
  5. Step 5: Solve for x
    x = 15,135,249,306.24/101,918.40
  6. Step 6: Final answer
    x = 148,503.60

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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.