Home / 147,381.72-221,051.04-72,481.77

Finding the Fourth Proportional to 147,381.72, 221,051.04 and 72,481.77

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Solution

The fourth proportional to 147,381.72, 221,051.04 and 72,481.77 is: 108,712.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,381.72 : 221,051.04 = 72,481.77 : x
  2. Step 2: Convert to fraction form
    147,381.72/221,051.04 = 72,481.77/x
  3. Step 3: Cross multiply
    147,381.72x = 221,051.04 × 72,481.77
  4. Step 4: Simplify right side
    147,381.72x = 16,022,170,639.54
  5. Step 5: Solve for x
    x = 16,022,170,639.54/147,381.72
  6. Step 6: Final answer
    x = 108,712.06

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1.5x scale

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.