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Finding the Fourth Proportional to 100,605.60, 150,908.40 and 99,050.40

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Solution

The fourth proportional to 100,605.60, 150,908.40 and 99,050.40 is: 148,575.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,605.60 : 150,908.40 = 99,050.40 : x
  2. Step 2: Convert to fraction form
    100,605.60/150,908.40 = 99,050.40/x
  3. Step 3: Cross multiply
    100,605.60x = 150,908.40 × 99,050.40
  4. Step 4: Simplify right side
    100,605.60x = 14,947,537,383.36
  5. Step 5: Solve for x
    x = 14,947,537,383.36/100,605.60
  6. Step 6: Final answer
    x = 148,575.60

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1.5x scale

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.