Home / 137,108.74-205,580.08-89,666.56

Finding the Fourth Proportional to 137,108.74, 205,580.08 and 89,666.56

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Solution

The fourth proportional to 137,108.74, 205,580.08 and 89,666.56 is: 134,445.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,108.74 : 205,580.08 = 89,666.56 : x
  2. Step 2: Convert to fraction form
    137,108.74/205,580.08 = 89,666.56/x
  3. Step 3: Cross multiply
    137,108.74x = 205,580.08 × 89,666.56
  4. Step 4: Simplify right side
    137,108.74x = 18,433,658,578.12
  5. Step 5: Solve for x
    x = 18,433,658,578.12/137,108.74
  6. Step 6: Final answer
    x = 134,445.54

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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.