Home / 189,701.74-261,785.23-103,658.83

Finding the Fourth Proportional to 189,701.74, 261,785.23 and 103,658.83

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Solution

The fourth proportional to 189,701.74, 261,785.23 and 103,658.83 is: 143,047.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,701.74 : 261,785.23 = 103,658.83 : x
  2. Step 2: Convert to fraction form
    189,701.74/261,785.23 = 103,658.83/x
  3. Step 3: Cross multiply
    189,701.74x = 261,785.23 × 103,658.83
  4. Step 4: Simplify right side
    189,701.74x = 27,136,349,739.47
  5. Step 5: Solve for x
    x = 27,136,349,739.47/189,701.74
  6. Step 6: Final answer
    x = 143,047.45

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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.