Home / 141,507.77-195,308.61-81,118.93

Finding the Fourth Proportional to 141,507.77, 195,308.61 and 81,118.93

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Solution

The fourth proportional to 141,507.77, 195,308.61 and 81,118.93 is: 111,960.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,507.77 : 195,308.61 = 81,118.93 : x
  2. Step 2: Convert to fraction form
    141,507.77/195,308.61 = 81,118.93/x
  3. Step 3: Cross multiply
    141,507.77x = 195,308.61 × 81,118.93
  4. Step 4: Simplify right side
    141,507.77x = 15,843,225,462.99
  5. Step 5: Solve for x
    x = 15,843,225,462.99/141,507.77
  6. Step 6: Final answer
    x = 111,960.11

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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.