Home / 141,429.76-195,178.08-77,772.48

Finding the Fourth Proportional to 141,429.76, 195,178.08 and 77,772.48

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Solution

The fourth proportional to 141,429.76, 195,178.08 and 77,772.48 is: 107,328.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,429.76 : 195,178.08 = 77,772.48 : x
  2. Step 2: Convert to fraction form
    141,429.76/195,178.08 = 77,772.48/x
  3. Step 3: Cross multiply
    141,429.76x = 195,178.08 × 77,772.48
  4. Step 4: Simplify right side
    141,429.76x = 15,179,483,323.24
  5. Step 5: Solve for x
    x = 15,179,483,323.24/141,429.76
  6. Step 6: Final answer
    x = 107,328.78

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1.5x scale

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.