Home / 133,239.28-183,852.50-85,557.22

Finding the Fourth Proportional to 133,239.28, 183,852.50 and 85,557.22

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Solution

The fourth proportional to 133,239.28, 183,852.50 and 85,557.22 is: 118,057.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,239.28 : 183,852.50 = 85,557.22 : x
  2. Step 2: Convert to fraction form
    133,239.28/183,852.50 = 85,557.22/x
  3. Step 3: Cross multiply
    133,239.28x = 183,852.50 × 85,557.22
  4. Step 4: Simplify right side
    133,239.28x = 15,729,908,790.05
  5. Step 5: Solve for x
    x = 15,729,908,790.05/133,239.28
  6. Step 6: Final answer
    x = 118,057.59

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.