Home / 140,707.45-194,176.20-77,045.23

Finding the Fourth Proportional to 140,707.45, 194,176.20 and 77,045.23

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Solution

The fourth proportional to 140,707.45, 194,176.20 and 77,045.23 is: 106,322.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,707.45 : 194,176.20 = 77,045.23 : x
  2. Step 2: Convert to fraction form
    140,707.45/194,176.20 = 77,045.23/x
  3. Step 3: Cross multiply
    140,707.45x = 194,176.20 × 77,045.23
  4. Step 4: Simplify right side
    140,707.45x = 14,960,349,989.53
  5. Step 5: Solve for x
    x = 14,960,349,989.53/140,707.45
  6. Step 6: Final answer
    x = 106,322.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.