Home / 190,391.14-285,275.16-115,283.80

Finding the Fourth Proportional to 190,391.14, 285,275.16 and 115,283.80

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Solution

The fourth proportional to 190,391.14, 285,275.16 and 115,283.80 is: 172,737.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,391.14 : 285,275.16 = 115,283.80 : x
  2. Step 2: Convert to fraction form
    190,391.14/285,275.16 = 115,283.80/x
  3. Step 3: Cross multiply
    190,391.14x = 285,275.16 × 115,283.80
  4. Step 4: Simplify right side
    190,391.14x = 32,887,604,490.41
  5. Step 5: Solve for x
    x = 32,887,604,490.41/190,391.14
  6. Step 6: Final answer
    x = 172,737.05

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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.