Home / 187,106.69-258,133.94-115,362.16

Finding the Fourth Proportional to 187,106.69, 258,133.94 and 115,362.16

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Solution

The fourth proportional to 187,106.69, 258,133.94 and 115,362.16 is: 159,154.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,106.69 : 258,133.94 = 115,362.16 : x
  2. Step 2: Convert to fraction form
    187,106.69/258,133.94 = 115,362.16/x
  3. Step 3: Cross multiply
    187,106.69x = 258,133.94 × 115,362.16
  4. Step 4: Simplify right side
    187,106.69x = 29,778,887,665.56
  5. Step 5: Solve for x
    x = 29,778,887,665.56/187,106.69
  6. Step 6: Final answer
    x = 159,154.58

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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.