Home / 138,960.86-208,439.75-33,779.93

Finding the Fourth Proportional to 138,960.86, 208,439.75 and 33,779.93

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Solution

The fourth proportional to 138,960.86, 208,439.75 and 33,779.93 is: 50,669.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,960.86 : 208,439.75 = 33,779.93 : x
  2. Step 2: Convert to fraction form
    138,960.86/208,439.75 = 33,779.93/x
  3. Step 3: Cross multiply
    138,960.86x = 208,439.75 × 33,779.93
  4. Step 4: Simplify right side
    138,960.86x = 7,041,078,953.12
  5. Step 5: Solve for x
    x = 7,041,078,953.12/138,960.86
  6. Step 6: Final answer
    x = 50,669.51

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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.