Home / 156,815.86-235,188.32-72,529.77

Finding the Fourth Proportional to 156,815.86, 235,188.32 and 72,529.77

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Solution

The fourth proportional to 156,815.86, 235,188.32 and 72,529.77 is: 108,778.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,815.86 : 235,188.32 = 72,529.77 : x
  2. Step 2: Convert to fraction form
    156,815.86/235,188.32 = 72,529.77/x
  3. Step 3: Cross multiply
    156,815.86x = 235,188.32 × 72,529.77
  4. Step 4: Simplify right side
    156,815.86x = 17,058,154,937.61
  5. Step 5: Solve for x
    x = 17,058,154,937.61/156,815.86
  6. Step 6: Final answer
    x = 108,778.25

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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.