Home / 155,560.59-214,670.07-86,649.57

Finding the Fourth Proportional to 155,560.59, 214,670.07 and 86,649.57

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Solution

The fourth proportional to 155,560.59, 214,670.07 and 86,649.57 is: 119,574.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,560.59 : 214,670.07 = 86,649.57 : x
  2. Step 2: Convert to fraction form
    155,560.59/214,670.07 = 86,649.57/x
  3. Step 3: Cross multiply
    155,560.59x = 214,670.07 × 86,649.57
  4. Step 4: Simplify right side
    155,560.59x = 18,601,069,257.37
  5. Step 5: Solve for x
    x = 18,601,069,257.37/155,560.59
  6. Step 6: Final answer
    x = 119,574.43

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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.