Home / 138,988.71-208,483.37-50,242.07

Finding the Fourth Proportional to 138,988.71, 208,483.37 and 50,242.07

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Solution

The fourth proportional to 138,988.71, 208,483.37 and 50,242.07 is: 75,363.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,988.71 : 208,483.37 = 50,242.07 : x
  2. Step 2: Convert to fraction form
    138,988.71/208,483.37 = 50,242.07/x
  3. Step 3: Cross multiply
    138,988.71x = 208,483.37 × 50,242.07
  4. Step 4: Simplify right side
    138,988.71x = 10,474,636,069.38
  5. Step 5: Solve for x
    x = 10,474,636,069.38/138,988.71
  6. Step 6: Final answer
    x = 75,363.22

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1.5x scale

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.