Home / 137,148.47-205,658.09-89,039.25

Finding the Fourth Proportional to 137,148.47, 205,658.09 and 89,039.25

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Solution

The fourth proportional to 137,148.47, 205,658.09 and 89,039.25 is: 133,516.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,148.47 : 205,658.09 = 89,039.25 : x
  2. Step 2: Convert to fraction form
    137,148.47/205,658.09 = 89,039.25/x
  3. Step 3: Cross multiply
    137,148.47x = 205,658.09 × 89,039.25
  4. Step 4: Simplify right side
    137,148.47x = 18,311,641,644.84
  5. Step 5: Solve for x
    x = 18,311,641,644.84/137,148.47
  6. Step 6: Final answer
    x = 133,516.93

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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.