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Finding the Fourth Proportional to 133,065.40, 199,598.10 and 130,878.40

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Solution

The fourth proportional to 133,065.40, 199,598.10 and 130,878.40 is: 196,317.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,065.40 : 199,598.10 = 130,878.40 : x
  2. Step 2: Convert to fraction form
    133,065.40/199,598.10 = 130,878.40/x
  3. Step 3: Cross multiply
    133,065.40x = 199,598.10 × 130,878.40
  4. Step 4: Simplify right side
    133,065.40x = 26,123,079,971.04
  5. Step 5: Solve for x
    x = 26,123,079,971.04/133,065.40
  6. Step 6: Final answer
    x = 196,317.60

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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.