Home / 138,875.50-208,323-55,769.50

Finding the Fourth Proportional to 138,875.50, 208,323 and 55,769.50

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Solution

The fourth proportional to 138,875.50, 208,323 and 55,769.50 is: 83,658.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,875.50 : 208,323 = 55,769.50 : x
  2. Step 2: Convert to fraction form
    138,875.50/208,323 = 55,769.50/x
  3. Step 3: Cross multiply
    138,875.50x = 208,323 × 55,769.50
  4. Step 4: Simplify right side
    138,875.50x = 11,618,069,548.50
  5. Step 5: Solve for x
    x = 11,618,069,548.50/138,875.50
  6. Step 6: Final answer
    x = 83,658.17

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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.