Home / 141,445-195,194.10-77,786.92

Finding the Fourth Proportional to 141,445, 195,194.10 and 77,786.92

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Solution

The fourth proportional to 141,445, 195,194.10 and 77,786.92 is: 107,345.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,445 : 195,194.10 = 77,786.92 : x
  2. Step 2: Convert to fraction form
    141,445/195,194.10 = 77,786.92/x
  3. Step 3: Cross multiply
    141,445x = 195,194.10 × 77,786.92
  4. Step 4: Simplify right side
    141,445x = 15,183,547,841.17
  5. Step 5: Solve for x
    x = 15,183,547,841.17/141,445
  6. Step 6: Final answer
    x = 107,345.95

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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.