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Finding the Fourth Proportional to 133,398.80, 199,774.20 and 70,931.60

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Solution

The fourth proportional to 133,398.80, 199,774.20 and 70,931.60 is: 106,225.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,398.80 : 199,774.20 = 70,931.60 : x
  2. Step 2: Convert to fraction form
    133,398.80/199,774.20 = 70,931.60/x
  3. Step 3: Cross multiply
    133,398.80x = 199,774.20 × 70,931.60
  4. Step 4: Simplify right side
    133,398.80x = 14,170,303,644.72
  5. Step 5: Solve for x
    x = 14,170,303,644.72/133,398.80
  6. Step 6: Final answer
    x = 106,225.12

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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.