Home / 141,168.06-194,812.30-77,509.98

Finding the Fourth Proportional to 141,168.06, 194,812.30 and 77,509.98

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Solution

The fourth proportional to 141,168.06, 194,812.30 and 77,509.98 is: 106,963.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,168.06 : 194,812.30 = 77,509.98 : x
  2. Step 2: Convert to fraction form
    141,168.06/194,812.30 = 77,509.98/x
  3. Step 3: Cross multiply
    141,168.06x = 194,812.30 × 77,509.98
  4. Step 4: Simplify right side
    141,168.06x = 15,099,896,502.69
  5. Step 5: Solve for x
    x = 15,099,896,502.69/141,168.06
  6. Step 6: Final answer
    x = 106,963.98

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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.