Home / 126,503.60-189,601.80-56,308.40

Finding the Fourth Proportional to 126,503.60, 189,601.80 and 56,308.40

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Solution

The fourth proportional to 126,503.60, 189,601.80 and 56,308.40 is: 84,394.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,503.60 : 189,601.80 = 56,308.40 : x
  2. Step 2: Convert to fraction form
    126,503.60/189,601.80 = 56,308.40/x
  3. Step 3: Cross multiply
    126,503.60x = 189,601.80 × 56,308.40
  4. Step 4: Simplify right side
    126,503.60x = 10,676,173,995.12
  5. Step 5: Solve for x
    x = 10,676,173,995.12/126,503.60
  6. Step 6: Final answer
    x = 84,394.23

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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.