Home / 121,300.32-181,985.67-50,209.86

Finding the Fourth Proportional to 121,300.32, 181,985.67 and 50,209.86

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Solution

The fourth proportional to 121,300.32, 181,985.67 and 50,209.86 is: 75,329.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,300.32 : 181,985.67 = 50,209.86 : x
  2. Step 2: Convert to fraction form
    121,300.32/181,985.67 = 50,209.86/x
  3. Step 3: Cross multiply
    121,300.32x = 181,985.67 × 50,209.86
  4. Step 4: Simplify right side
    121,300.32x = 9,137,475,012.71
  5. Step 5: Solve for x
    x = 9,137,475,012.71/121,300.32
  6. Step 6: Final answer
    x = 75,329.36

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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.