Home / 138,777.30-208,038.38-50,009.10

Finding the Fourth Proportional to 138,777.30, 208,038.38 and 50,009.10

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Solution

The fourth proportional to 138,777.30, 208,038.38 and 50,009.10 is: 74,967.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,777.30 : 208,038.38 = 50,009.10 : x
  2. Step 2: Convert to fraction form
    138,777.30/208,038.38 = 50,009.10/x
  3. Step 3: Cross multiply
    138,777.30x = 208,038.38 × 50,009.10
  4. Step 4: Simplify right side
    138,777.30x = 10,403,811,119.07
  5. Step 5: Solve for x
    x = 10,403,811,119.07/138,777.30
  6. Step 6: Final answer
    x = 74,967.67

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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.