Home / 141,490.79-195,285.02-81,101.87

Finding the Fourth Proportional to 141,490.79, 195,285.02 and 81,101.87

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Solution

The fourth proportional to 141,490.79, 195,285.02 and 81,101.87 is: 111,936.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,490.79 : 195,285.02 = 81,101.87 : x
  2. Step 2: Convert to fraction form
    141,490.79/195,285.02 = 81,101.87/x
  3. Step 3: Cross multiply
    141,490.79x = 195,285.02 × 81,101.87
  4. Step 4: Simplify right side
    141,490.79x = 15,837,979,655.37
  5. Step 5: Solve for x
    x = 15,837,979,655.37/141,490.79
  6. Step 6: Final answer
    x = 111,936.47

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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.