Home / 88,213.45-131,653.49-79,700.77

Finding the Fourth Proportional to 88,213.45, 131,653.49 and 79,700.77

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Solution

The fourth proportional to 88,213.45, 131,653.49 and 79,700.77 is: 118,948.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,213.45 : 131,653.49 = 79,700.77 : x
  2. Step 2: Convert to fraction form
    88,213.45/131,653.49 = 79,700.77/x
  3. Step 3: Cross multiply
    88,213.45x = 131,653.49 × 79,700.77
  4. Step 4: Simplify right side
    88,213.45x = 10,492,884,526.19
  5. Step 5: Solve for x
    x = 10,492,884,526.19/88,213.45
  6. Step 6: Final answer
    x = 118,948.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.