Home / 131,443.61-197,165.40-31,603.79

Finding the Fourth Proportional to 131,443.61, 197,165.40 and 31,603.79

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Solution

The fourth proportional to 131,443.61, 197,165.40 and 31,603.79 is: 47,405.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,443.61 : 197,165.40 = 31,603.79 : x
  2. Step 2: Convert to fraction form
    131,443.61/197,165.40 = 31,603.79/x
  3. Step 3: Cross multiply
    131,443.61x = 197,165.40 × 31,603.79
  4. Step 4: Simplify right side
    131,443.61x = 6,231,172,911.04
  5. Step 5: Solve for x
    x = 6,231,172,911.04/131,443.61
  6. Step 6: Final answer
    x = 47,405.68

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1.5x scale

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.