Home / 126,276.80-189,458.40-56,206.40

Finding the Fourth Proportional to 126,276.80, 189,458.40 and 56,206.40

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Solution

The fourth proportional to 126,276.80, 189,458.40 and 56,206.40 is: 84,328.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,276.80 : 189,458.40 = 56,206.40 : x
  2. Step 2: Convert to fraction form
    126,276.80/189,458.40 = 56,206.40/x
  3. Step 3: Cross multiply
    126,276.80x = 189,458.40 × 56,206.40
  4. Step 4: Simplify right side
    126,276.80x = 10,648,774,613.76
  5. Step 5: Solve for x
    x = 10,648,774,613.76/126,276.80
  6. Step 6: Final answer
    x = 84,328.83

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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.