Home / 141,681.48-195,519.45-78,018.75

Finding the Fourth Proportional to 141,681.48, 195,519.45 and 78,018.75

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Solution

The fourth proportional to 141,681.48, 195,519.45 and 78,018.75 is: 107,665.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,681.48 : 195,519.45 = 78,018.75 : x
  2. Step 2: Convert to fraction form
    141,681.48/195,519.45 = 78,018.75/x
  3. Step 3: Cross multiply
    141,681.48x = 195,519.45 × 78,018.75
  4. Step 4: Simplify right side
    141,681.48x = 15,254,183,089.69
  5. Step 5: Solve for x
    x = 15,254,183,089.69/141,681.48
  6. Step 6: Final answer
    x = 107,665.33

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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.