Home / 193,145.40-289,718.10-130,159.80

Finding the Fourth Proportional to 193,145.40, 289,718.10 and 130,159.80

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Solution

The fourth proportional to 193,145.40, 289,718.10 and 130,159.80 is: 195,239.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,145.40 : 289,718.10 = 130,159.80 : x
  2. Step 2: Convert to fraction form
    193,145.40/289,718.10 = 130,159.80/x
  3. Step 3: Cross multiply
    193,145.40x = 289,718.10 × 130,159.80
  4. Step 4: Simplify right side
    193,145.40x = 37,709,649,952.38
  5. Step 5: Solve for x
    x = 37,709,649,952.38/193,145.40
  6. Step 6: Final answer
    x = 195,239.70

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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.