Home / 187,107.26-258,134.72-115,362.72

Finding the Fourth Proportional to 187,107.26, 258,134.72 and 115,362.72

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Solution

The fourth proportional to 187,107.26, 258,134.72 and 115,362.72 is: 159,155.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,107.26 : 258,134.72 = 115,362.72 : x
  2. Step 2: Convert to fraction form
    187,107.26/258,134.72 = 115,362.72/x
  3. Step 3: Cross multiply
    187,107.26x = 258,134.72 × 115,362.72
  4. Step 4: Simplify right side
    187,107.26x = 29,779,122,848.82
  5. Step 5: Solve for x
    x = 29,779,122,848.82/187,107.26
  6. Step 6: Final answer
    x = 159,155.36

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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.