Home / 122,020.32-183,311.45-86,569.66

Finding the Fourth Proportional to 122,020.32, 183,311.45 and 86,569.66

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Solution

The fourth proportional to 122,020.32, 183,311.45 and 86,569.66 is: 130,053.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,020.32 : 183,311.45 = 86,569.66 : x
  2. Step 2: Convert to fraction form
    122,020.32/183,311.45 = 86,569.66/x
  3. Step 3: Cross multiply
    122,020.32x = 183,311.45 × 86,569.66
  4. Step 4: Simplify right side
    122,020.32x = 15,869,210,508.49
  5. Step 5: Solve for x
    x = 15,869,210,508.49/122,020.32
  6. Step 6: Final answer
    x = 130,053.83

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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.