Home / 187,115.01-258,145.41-115,370.47

Finding the Fourth Proportional to 187,115.01, 258,145.41 and 115,370.47

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Solution

The fourth proportional to 187,115.01, 258,145.41 and 115,370.47 is: 159,166.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,115.01 : 258,145.41 = 115,370.47 : x
  2. Step 2: Convert to fraction form
    187,115.01/258,145.41 = 115,370.47/x
  3. Step 3: Cross multiply
    187,115.01x = 258,145.41 × 115,370.47
  4. Step 4: Simplify right side
    187,115.01x = 29,782,357,280.04
  5. Step 5: Solve for x
    x = 29,782,357,280.04/187,115.01
  6. Step 6: Final answer
    x = 159,166.05

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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.