Home / 126,242.64-189,346.14-51,395.40

Finding the Fourth Proportional to 126,242.64, 189,346.14 and 51,395.40

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Solution

The fourth proportional to 126,242.64, 189,346.14 and 51,395.40 is: 77,085.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,242.64 : 189,346.14 = 51,395.40 : x
  2. Step 2: Convert to fraction form
    126,242.64/189,346.14 = 51,395.40/x
  3. Step 3: Cross multiply
    126,242.64x = 189,346.14 × 51,395.40
  4. Step 4: Simplify right side
    126,242.64x = 9,731,520,603.76
  5. Step 5: Solve for x
    x = 9,731,520,603.76/126,242.64
  6. Step 6: Final answer
    x = 77,085.85

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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.