Home / 115,371.40-159,223.68-70,038.88

Finding the Fourth Proportional to 115,371.40, 159,223.68 and 70,038.88

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Solution

The fourth proportional to 115,371.40, 159,223.68 and 70,038.88 is: 96,660.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,371.40 : 159,223.68 = 70,038.88 : x
  2. Step 2: Convert to fraction form
    115,371.40/159,223.68 = 70,038.88/x
  3. Step 3: Cross multiply
    115,371.40x = 159,223.68 × 70,038.88
  4. Step 4: Simplify right side
    115,371.40x = 11,151,848,216.68
  5. Step 5: Solve for x
    x = 11,151,848,216.68/115,371.40
  6. Step 6: Final answer
    x = 96,660.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.