Home / 158,971.16-219,385.59-87,353.75

Finding the Fourth Proportional to 158,971.16, 219,385.59 and 87,353.75

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Solution

The fourth proportional to 158,971.16, 219,385.59 and 87,353.75 is: 120,551.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,971.16 : 219,385.59 = 87,353.75 : x
  2. Step 2: Convert to fraction form
    158,971.16/219,385.59 = 87,353.75/x
  3. Step 3: Cross multiply
    158,971.16x = 219,385.59 × 87,353.75
  4. Step 4: Simplify right side
    158,971.16x = 19,164,153,982.46
  5. Step 5: Solve for x
    x = 19,164,153,982.46/158,971.16
  6. Step 6: Final answer
    x = 120,551.14

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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.