Home / 170,637.84-255,757.50-128,382.21

Finding the Fourth Proportional to 170,637.84, 255,757.50 and 128,382.21

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Solution

The fourth proportional to 170,637.84, 255,757.50 and 128,382.21 is: 192,423.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,637.84 : 255,757.50 = 128,382.21 : x
  2. Step 2: Convert to fraction form
    170,637.84/255,757.50 = 128,382.21/x
  3. Step 3: Cross multiply
    170,637.84x = 255,757.50 × 128,382.21
  4. Step 4: Simplify right side
    170,637.84x = 32,834,713,074.08
  5. Step 5: Solve for x
    x = 32,834,713,074.08/170,637.84
  6. Step 6: Final answer
    x = 192,423.40

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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.