Home / 131,575.12-181,594.15-86,384.19

Finding the Fourth Proportional to 131,575.12, 181,594.15 and 86,384.19

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Solution

The fourth proportional to 131,575.12, 181,594.15 and 86,384.19 is: 119,223.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,575.12 : 181,594.15 = 86,384.19 : x
  2. Step 2: Convert to fraction form
    131,575.12/181,594.15 = 86,384.19/x
  3. Step 3: Cross multiply
    131,575.12x = 181,594.15 × 86,384.19
  4. Step 4: Simplify right side
    131,575.12x = 15,686,863,556.49
  5. Step 5: Solve for x
    x = 15,686,863,556.49/131,575.12
  6. Step 6: Final answer
    x = 119,223.63

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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.