Home / 137,161.02-189,206-79,793.89

Finding the Fourth Proportional to 137,161.02, 189,206 and 79,793.89

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Solution

The fourth proportional to 137,161.02, 189,206 and 79,793.89 is: 110,071.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,161.02 : 189,206 = 79,793.89 : x
  2. Step 2: Convert to fraction form
    137,161.02/189,206 = 79,793.89/x
  3. Step 3: Cross multiply
    137,161.02x = 189,206 × 79,793.89
  4. Step 4: Simplify right side
    137,161.02x = 15,097,482,751.34
  5. Step 5: Solve for x
    x = 15,097,482,751.34/137,161.02
  6. Step 6: Final answer
    x = 110,071.23

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.