Home / 126,550.84-189,430.96-84,465.40

Finding the Fourth Proportional to 126,550.84, 189,430.96 and 84,465.40

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Solution

The fourth proportional to 126,550.84, 189,430.96 and 84,465.40 is: 126,434.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,550.84 : 189,430.96 = 84,465.40 : x
  2. Step 2: Convert to fraction form
    126,550.84/189,430.96 = 84,465.40/x
  3. Step 3: Cross multiply
    126,550.84x = 189,430.96 × 84,465.40
  4. Step 4: Simplify right side
    126,550.84x = 16,000,361,808.78
  5. Step 5: Solve for x
    x = 16,000,361,808.78/126,550.84
  6. Step 6: Final answer
    x = 126,434.26

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1.5x scale

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.