Home / 131,376.45-181,299.50-70,947.09

Finding the Fourth Proportional to 131,376.45, 181,299.50 and 70,947.09

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Solution

The fourth proportional to 131,376.45, 181,299.50 and 70,947.09 is: 97,906.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,376.45 : 181,299.50 = 70,947.09 : x
  2. Step 2: Convert to fraction form
    131,376.45/181,299.50 = 70,947.09/x
  3. Step 3: Cross multiply
    131,376.45x = 181,299.50 × 70,947.09
  4. Step 4: Simplify right side
    131,376.45x = 12,862,671,588.72
  5. Step 5: Solve for x
    x = 12,862,671,588.72/131,376.45
  6. Step 6: Final answer
    x = 97,906.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.