Home / 138,877.96-208,300.46-36,288.50

Finding the Fourth Proportional to 138,877.96, 208,300.46 and 36,288.50

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Solution

The fourth proportional to 138,877.96, 208,300.46 and 36,288.50 is: 54,428.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,877.96 : 208,300.46 = 36,288.50 : x
  2. Step 2: Convert to fraction form
    138,877.96/208,300.46 = 36,288.50/x
  3. Step 3: Cross multiply
    138,877.96x = 208,300.46 × 36,288.50
  4. Step 4: Simplify right side
    138,877.96x = 7,558,911,242.71
  5. Step 5: Solve for x
    x = 7,558,911,242.71/138,877.96
  6. Step 6: Final answer
    x = 54,428.44

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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.