Home / 141,873.16-195,784.98-78,210.28

Finding the Fourth Proportional to 141,873.16, 195,784.98 and 78,210.28

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Solution

The fourth proportional to 141,873.16, 195,784.98 and 78,210.28 is: 107,930.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,873.16 : 195,784.98 = 78,210.28 : x
  2. Step 2: Convert to fraction form
    141,873.16/195,784.98 = 78,210.28/x
  3. Step 3: Cross multiply
    141,873.16x = 195,784.98 × 78,210.28
  4. Step 4: Simplify right side
    141,873.16x = 15,312,398,105.59
  5. Step 5: Solve for x
    x = 15,312,398,105.59/141,873.16
  6. Step 6: Final answer
    x = 107,930.20

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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.