Home / 141,370.79-195,081.74-77,712.71

Finding the Fourth Proportional to 141,370.79, 195,081.74 and 77,712.71

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Solution

The fourth proportional to 141,370.79, 195,081.74 and 77,712.71 is: 107,238.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,370.79 : 195,081.74 = 77,712.71 : x
  2. Step 2: Convert to fraction form
    141,370.79/195,081.74 = 77,712.71/x
  3. Step 3: Cross multiply
    141,370.79x = 195,081.74 × 77,712.71
  4. Step 4: Simplify right side
    141,370.79x = 15,160,330,298.35
  5. Step 5: Solve for x
    x = 15,160,330,298.35/141,370.79
  6. Step 6: Final answer
    x = 107,238.07

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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.