Home / 131,490.30-197,284.05-42,746.70

Finding the Fourth Proportional to 131,490.30, 197,284.05 and 42,746.70

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Solution

The fourth proportional to 131,490.30, 197,284.05 and 42,746.70 is: 64,135.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,490.30 : 197,284.05 = 42,746.70 : x
  2. Step 2: Convert to fraction form
    131,490.30/197,284.05 = 42,746.70/x
  3. Step 3: Cross multiply
    131,490.30x = 197,284.05 × 42,746.70
  4. Step 4: Simplify right side
    131,490.30x = 8,433,242,100.14
  5. Step 5: Solve for x
    x = 8,433,242,100.14/131,490.30
  6. Step 6: Final answer
    x = 64,135.85

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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.