Home / 156,816.86-235,189.82-72,530.77

Finding the Fourth Proportional to 156,816.86, 235,189.82 and 72,530.77

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Solution

The fourth proportional to 156,816.86, 235,189.82 and 72,530.77 is: 108,779.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,816.86 : 235,189.82 = 72,530.77 : x
  2. Step 2: Convert to fraction form
    156,816.86/235,189.82 = 72,530.77/x
  3. Step 3: Cross multiply
    156,816.86x = 235,189.82 × 72,530.77
  4. Step 4: Simplify right side
    156,816.86x = 17,058,498,740.76
  5. Step 5: Solve for x
    x = 17,058,498,740.76/156,816.86
  6. Step 6: Final answer
    x = 108,779.75

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.