Home / 134,108.10-185,087.68-86,499.86

Finding the Fourth Proportional to 134,108.10, 185,087.68 and 86,499.86

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Solution

The fourth proportional to 134,108.10, 185,087.68 and 86,499.86 is: 119,381.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,108.10 : 185,087.68 = 86,499.86 : x
  2. Step 2: Convert to fraction form
    134,108.10/185,087.68 = 86,499.86/x
  3. Step 3: Cross multiply
    134,108.10x = 185,087.68 × 86,499.86
  4. Step 4: Simplify right side
    134,108.10x = 16,010,058,407.72
  5. Step 5: Solve for x
    x = 16,010,058,407.72/134,108.10
  6. Step 6: Final answer
    x = 119,381.74

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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.