Home / 203,899.67-305,681.10-89,966.36

Finding the Fourth Proportional to 203,899.67, 305,681.10 and 89,966.36

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Solution

The fourth proportional to 203,899.67, 305,681.10 and 89,966.36 is: 134,875.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,899.67 : 305,681.10 = 89,966.36 : x
  2. Step 2: Convert to fraction form
    203,899.67/305,681.10 = 89,966.36/x
  3. Step 3: Cross multiply
    203,899.67x = 305,681.10 × 89,966.36
  4. Step 4: Simplify right side
    203,899.67x = 27,501,015,657.61
  5. Step 5: Solve for x
    x = 27,501,015,657.61/203,899.67
  6. Step 6: Final answer
    x = 134,875.24

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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.