Home / 128,145.64-191,839.95-94,643.23

Finding the Fourth Proportional to 128,145.64, 191,839.95 and 94,643.23

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Solution

The fourth proportional to 128,145.64, 191,839.95 and 94,643.23 is: 141,685.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,145.64 : 191,839.95 = 94,643.23 : x
  2. Step 2: Convert to fraction form
    128,145.64/191,839.95 = 94,643.23/x
  3. Step 3: Cross multiply
    128,145.64x = 191,839.95 × 94,643.23
  4. Step 4: Simplify right side
    128,145.64x = 18,156,352,511.04
  5. Step 5: Solve for x
    x = 18,156,352,511.04/128,145.64
  6. Step 6: Final answer
    x = 141,685.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.