Home / 141,488.76-195,259.68-77,831.40

Finding the Fourth Proportional to 141,488.76, 195,259.68 and 77,831.40

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Solution

The fourth proportional to 141,488.76, 195,259.68 and 77,831.40 is: 107,410.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,488.76 : 195,259.68 = 77,831.40 : x
  2. Step 2: Convert to fraction form
    141,488.76/195,259.68 = 77,831.40/x
  3. Step 3: Cross multiply
    141,488.76x = 195,259.68 × 77,831.40
  4. Step 4: Simplify right side
    141,488.76x = 15,197,334,257.95
  5. Step 5: Solve for x
    x = 15,197,334,257.95/141,488.76
  6. Step 6: Final answer
    x = 107,410.19

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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.