Home / 128,046.03-191,973.90-61,422.72

Finding the Fourth Proportional to 128,046.03, 191,973.90 and 61,422.72

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Solution

The fourth proportional to 128,046.03, 191,973.90 and 61,422.72 is: 92,088.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,046.03 : 191,973.90 = 61,422.72 : x
  2. Step 2: Convert to fraction form
    128,046.03/191,973.90 = 61,422.72/x
  3. Step 3: Cross multiply
    128,046.03x = 191,973.90 × 61,422.72
  4. Step 4: Simplify right side
    128,046.03x = 11,791,559,107.01
  5. Step 5: Solve for x
    x = 11,791,559,107.01/128,046.03
  6. Step 6: Final answer
    x = 92,088.44

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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.