Home / 129,254.24-178,298-75,527.84

Finding the Fourth Proportional to 129,254.24, 178,298 and 75,527.84

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Solution

The fourth proportional to 129,254.24, 178,298 and 75,527.84 is: 104,185.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,254.24 : 178,298 = 75,527.84 : x
  2. Step 2: Convert to fraction form
    129,254.24/178,298 = 75,527.84/x
  3. Step 3: Cross multiply
    129,254.24x = 178,298 × 75,527.84
  4. Step 4: Simplify right side
    129,254.24x = 13,466,462,816.32
  5. Step 5: Solve for x
    x = 13,466,462,816.32/129,254.24
  6. Step 6: Final answer
    x = 104,185.85

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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.