Home / 129,563.01-178,795.35-75,875.94

Finding the Fourth Proportional to 129,563.01, 178,795.35 and 75,875.94

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Solution

The fourth proportional to 129,563.01, 178,795.35 and 75,875.94 is: 104,707.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,563.01 : 178,795.35 = 75,875.94 : x
  2. Step 2: Convert to fraction form
    129,563.01/178,795.35 = 75,875.94/x
  3. Step 3: Cross multiply
    129,563.01x = 178,795.35 × 75,875.94
  4. Step 4: Simplify right side
    129,563.01x = 13,566,265,248.88
  5. Step 5: Solve for x
    x = 13,566,265,248.88/129,563.01
  6. Step 6: Final answer
    x = 104,707.86

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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.