Home / 133,094.70-199,642.05-69,890.40

Finding the Fourth Proportional to 133,094.70, 199,642.05 and 69,890.40

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Solution

The fourth proportional to 133,094.70, 199,642.05 and 69,890.40 is: 104,835.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,094.70 : 199,642.05 = 69,890.40 : x
  2. Step 2: Convert to fraction form
    133,094.70/199,642.05 = 69,890.40/x
  3. Step 3: Cross multiply
    133,094.70x = 199,642.05 × 69,890.40
  4. Step 4: Simplify right side
    133,094.70x = 13,953,062,731.32
  5. Step 5: Solve for x
    x = 13,953,062,731.32/133,094.70
  6. Step 6: Final answer
    x = 104,835.60

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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.