Home / 141,416.29-195,126.45-79,328.74

Finding the Fourth Proportional to 141,416.29, 195,126.45 and 79,328.74

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Solution

The fourth proportional to 141,416.29, 195,126.45 and 79,328.74 is: 109,457.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,416.29 : 195,126.45 = 79,328.74 : x
  2. Step 2: Convert to fraction form
    141,416.29/195,126.45 = 79,328.74/x
  3. Step 3: Cross multiply
    141,416.29x = 195,126.45 × 79,328.74
  4. Step 4: Simplify right side
    141,416.29x = 15,479,135,419.17
  5. Step 5: Solve for x
    x = 15,479,135,419.17/141,416.29
  6. Step 6: Final answer
    x = 109,457.94

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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.