Home / 152,971.10-229,261.96-86,448.34

Finding the Fourth Proportional to 152,971.10, 229,261.96 and 86,448.34

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Solution

The fourth proportional to 152,971.10, 229,261.96 and 86,448.34 is: 129,562.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,971.10 : 229,261.96 = 86,448.34 : x
  2. Step 2: Convert to fraction form
    152,971.10/229,261.96 = 86,448.34/x
  3. Step 3: Cross multiply
    152,971.10x = 229,261.96 × 86,448.34
  4. Step 4: Simplify right side
    152,971.10x = 19,819,315,867.15
  5. Step 5: Solve for x
    x = 19,819,315,867.15/152,971.10
  6. Step 6: Final answer
    x = 129,562.49

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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.