Home / 141,680.63-195,519.27-78,018.27

Finding the Fourth Proportional to 141,680.63, 195,519.27 and 78,018.27

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Solution

The fourth proportional to 141,680.63, 195,519.27 and 78,018.27 is: 107,665.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,680.63 : 195,519.27 = 78,018.27 : x
  2. Step 2: Convert to fraction form
    141,680.63/195,519.27 = 78,018.27/x
  3. Step 3: Cross multiply
    141,680.63x = 195,519.27 × 78,018.27
  4. Step 4: Simplify right side
    141,680.63x = 15,254,075,197.06
  5. Step 5: Solve for x
    x = 15,254,075,197.06/141,680.63
  6. Step 6: Final answer
    x = 107,665.22

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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.