Home / 129,009.24-178,001.58-75,263.58

Finding the Fourth Proportional to 129,009.24, 178,001.58 and 75,263.58

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Solution

The fourth proportional to 129,009.24, 178,001.58 and 75,263.58 is: 103,845.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,009.24 : 178,001.58 = 75,263.58 : x
  2. Step 2: Convert to fraction form
    129,009.24/178,001.58 = 75,263.58/x
  3. Step 3: Cross multiply
    129,009.24x = 178,001.58 × 75,263.58
  4. Step 4: Simplify right side
    129,009.24x = 13,397,036,156.46
  5. Step 5: Solve for x
    x = 13,397,036,156.46/129,009.24
  6. Step 6: Final answer
    x = 103,845.56

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1.5x scale

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.