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Finding the Fourth Proportional to 133,045.70, 199,568.55 and 69,841.40

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Solution

The fourth proportional to 133,045.70, 199,568.55 and 69,841.40 is: 104,762.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,045.70 : 199,568.55 = 69,841.40 : x
  2. Step 2: Convert to fraction form
    133,045.70/199,568.55 = 69,841.40/x
  3. Step 3: Cross multiply
    133,045.70x = 199,568.55 × 69,841.40
  4. Step 4: Simplify right side
    133,045.70x = 13,938,146,927.97
  5. Step 5: Solve for x
    x = 13,938,146,927.97/133,045.70
  6. Step 6: Final answer
    x = 104,762.10

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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.