Home / 126,547.34-189,749.12-51,579.68

Finding the Fourth Proportional to 126,547.34, 189,749.12 and 51,579.68

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Solution

The fourth proportional to 126,547.34, 189,749.12 and 51,579.68 is: 77,340.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,547.34 : 189,749.12 = 51,579.68 : x
  2. Step 2: Convert to fraction form
    126,547.34/189,749.12 = 51,579.68/x
  3. Step 3: Cross multiply
    126,547.34x = 189,749.12 × 51,579.68
  4. Step 4: Simplify right side
    126,547.34x = 9,787,197,683.24
  5. Step 5: Solve for x
    x = 9,787,197,683.24/126,547.34
  6. Step 6: Final answer
    x = 77,340.21

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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.