Home / 131,665.09-197,518.11-42,897.91

Finding the Fourth Proportional to 131,665.09, 197,518.11 and 42,897.91

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Solution

The fourth proportional to 131,665.09, 197,518.11 and 42,897.91 is: 64,353.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,665.09 : 197,518.11 = 42,897.91 : x
  2. Step 2: Convert to fraction form
    131,665.09/197,518.11 = 42,897.91/x
  3. Step 3: Cross multiply
    131,665.09x = 197,518.11 × 42,897.91
  4. Step 4: Simplify right side
    131,665.09x = 8,473,114,106.15
  5. Step 5: Solve for x
    x = 8,473,114,106.15/131,665.09
  6. Step 6: Final answer
    x = 64,353.54

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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.