Home / 187,145.60-258,261.59-102,262.66

Finding the Fourth Proportional to 187,145.60, 258,261.59 and 102,262.66

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Solution

The fourth proportional to 187,145.60, 258,261.59 and 102,262.66 is: 141,122.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,145.60 : 258,261.59 = 102,262.66 : x
  2. Step 2: Convert to fraction form
    187,145.60/258,261.59 = 102,262.66/x
  3. Step 3: Cross multiply
    187,145.60x = 258,261.59 × 102,262.66
  4. Step 4: Simplify right side
    187,145.60x = 26,410,516,779.23
  5. Step 5: Solve for x
    x = 26,410,516,779.23/187,145.60
  6. Step 6: Final answer
    x = 141,122.83

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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.