Home / 115,074.34-158,756.97-70,388.26

Finding the Fourth Proportional to 115,074.34, 158,756.97 and 70,388.26

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Solution

The fourth proportional to 115,074.34, 158,756.97 and 70,388.26 is: 97,107.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,074.34 : 158,756.97 = 70,388.26 : x
  2. Step 2: Convert to fraction form
    115,074.34/158,756.97 = 70,388.26/x
  3. Step 3: Cross multiply
    115,074.34x = 158,756.97 × 70,388.26
  4. Step 4: Simplify right side
    115,074.34x = 11,174,626,881.17
  5. Step 5: Solve for x
    x = 11,174,626,881.17/115,074.34
  6. Step 6: Final answer
    x = 97,107.89

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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.