Home / 141,965.76-195,911.95-78,303.41

Finding the Fourth Proportional to 141,965.76, 195,911.95 and 78,303.41

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Solution

The fourth proportional to 141,965.76, 195,911.95 and 78,303.41 is: 108,058.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,965.76 : 195,911.95 = 78,303.41 : x
  2. Step 2: Convert to fraction form
    141,965.76/195,911.95 = 78,303.41/x
  3. Step 3: Cross multiply
    141,965.76x = 195,911.95 × 78,303.41
  4. Step 4: Simplify right side
    141,965.76x = 15,340,572,373.67
  5. Step 5: Solve for x
    x = 15,340,572,373.67/141,965.76
  6. Step 6: Final answer
    x = 108,058.26

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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.