Home / 115,911.24-159,948.72-70,584.20

Finding the Fourth Proportional to 115,911.24, 159,948.72 and 70,584.20

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Solution

The fourth proportional to 115,911.24, 159,948.72 and 70,584.20 is: 97,400.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,911.24 : 159,948.72 = 70,584.20 : x
  2. Step 2: Convert to fraction form
    115,911.24/159,948.72 = 70,584.20/x
  3. Step 3: Cross multiply
    115,911.24x = 159,948.72 × 70,584.20
  4. Step 4: Simplify right side
    115,911.24x = 11,289,851,642.48
  5. Step 5: Solve for x
    x = 11,289,851,642.48/115,911.24
  6. Step 6: Final answer
    x = 97,400.84

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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.