Home / 141,582.41-195,381.71-77,920.21

Finding the Fourth Proportional to 141,582.41, 195,381.71 and 77,920.21

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Solution

The fourth proportional to 141,582.41, 195,381.71 and 77,920.21 is: 107,528.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,582.41 : 195,381.71 = 77,920.21 : x
  2. Step 2: Convert to fraction form
    141,582.41/195,381.71 = 77,920.21/x
  3. Step 3: Cross multiply
    141,582.41x = 195,381.71 × 77,920.21
  4. Step 4: Simplify right side
    141,582.41x = 15,224,182,995.30
  5. Step 5: Solve for x
    x = 15,224,182,995.30/141,582.41
  6. Step 6: Final answer
    x = 107,528.77

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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.