Home / 143,877.50-198,576.60-90,208.52

Finding the Fourth Proportional to 143,877.50, 198,576.60 and 90,208.52

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Solution

The fourth proportional to 143,877.50, 198,576.60 and 90,208.52 is: 124,503.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,877.50 : 198,576.60 = 90,208.52 : x
  2. Step 2: Convert to fraction form
    143,877.50/198,576.60 = 90,208.52/x
  3. Step 3: Cross multiply
    143,877.50x = 198,576.60 × 90,208.52
  4. Step 4: Simplify right side
    143,877.50x = 17,913,301,192.63
  5. Step 5: Solve for x
    x = 17,913,301,192.63/143,877.50
  6. Step 6: Final answer
    x = 124,503.84

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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.