Home / 187,212.13-258,322.57-106,641.23

Finding the Fourth Proportional to 187,212.13, 258,322.57 and 106,641.23

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Solution

The fourth proportional to 187,212.13, 258,322.57 and 106,641.23 is: 147,147.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,212.13 : 258,322.57 = 106,641.23 : x
  2. Step 2: Convert to fraction form
    187,212.13/258,322.57 = 106,641.23/x
  3. Step 3: Cross multiply
    187,212.13x = 258,322.57 × 106,641.23
  4. Step 4: Simplify right side
    187,212.13x = 27,547,835,043.35
  5. Step 5: Solve for x
    x = 27,547,835,043.35/187,212.13
  6. Step 6: Final answer
    x = 147,147.71

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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.