Home / 126,460.08-189,741.12-56,291.40

Finding the Fourth Proportional to 126,460.08, 189,741.12 and 56,291.40

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Solution

The fourth proportional to 126,460.08, 189,741.12 and 56,291.40 is: 84,459.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,460.08 : 189,741.12 = 56,291.40 : x
  2. Step 2: Convert to fraction form
    126,460.08/189,741.12 = 56,291.40/x
  3. Step 3: Cross multiply
    126,460.08x = 189,741.12 × 56,291.40
  4. Step 4: Simplify right side
    126,460.08x = 10,680,793,282.37
  5. Step 5: Solve for x
    x = 10,680,793,282.37/126,460.08
  6. Step 6: Final answer
    x = 84,459.80

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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.