Home / 126,561.60-189,688.80-56,366.40

Finding the Fourth Proportional to 126,561.60, 189,688.80 and 56,366.40

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Solution

The fourth proportional to 126,561.60, 189,688.80 and 56,366.40 is: 84,481.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,561.60 : 189,688.80 = 56,366.40 : x
  2. Step 2: Convert to fraction form
    126,561.60/189,688.80 = 56,366.40/x
  3. Step 3: Cross multiply
    126,561.60x = 189,688.80 × 56,366.40
  4. Step 4: Simplify right side
    126,561.60x = 10,692,074,776.32
  5. Step 5: Solve for x
    x = 10,692,074,776.32/126,561.60
  6. Step 6: Final answer
    x = 84,481.19

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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.