Home / 141,931.07-195,855.93-81,459.15

Finding the Fourth Proportional to 141,931.07, 195,855.93 and 81,459.15

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Solution

The fourth proportional to 141,931.07, 195,855.93 and 81,459.15 is: 112,408.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,931.07 : 195,855.93 = 81,459.15 : x
  2. Step 2: Convert to fraction form
    141,931.07/195,855.93 = 81,459.15/x
  3. Step 3: Cross multiply
    141,931.07x = 195,855.93 × 81,459.15
  4. Step 4: Simplify right side
    141,931.07x = 15,954,257,580.26
  5. Step 5: Solve for x
    x = 15,954,257,580.26/141,931.07
  6. Step 6: Final answer
    x = 112,408.49

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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.