Home / 126,298.15-189,346.64-72,929.54

Finding the Fourth Proportional to 126,298.15, 189,346.64 and 72,929.54

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Solution

The fourth proportional to 126,298.15, 189,346.64 and 72,929.54 is: 109,336.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,298.15 : 189,346.64 = 72,929.54 : x
  2. Step 2: Convert to fraction form
    126,298.15/189,346.64 = 72,929.54/x
  3. Step 3: Cross multiply
    126,298.15x = 189,346.64 × 72,929.54
  4. Step 4: Simplify right side
    126,298.15x = 13,808,963,355.75
  5. Step 5: Solve for x
    x = 13,808,963,355.75/126,298.15
  6. Step 6: Final answer
    x = 109,336.23

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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.