Home / 158,632.52-218,915.40-87,011.24

Finding the Fourth Proportional to 158,632.52, 218,915.40 and 87,011.24

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Solution

The fourth proportional to 158,632.52, 218,915.40 and 87,011.24 is: 120,076.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,632.52 : 218,915.40 = 87,011.24 : x
  2. Step 2: Convert to fraction form
    158,632.52/218,915.40 = 87,011.24/x
  3. Step 3: Cross multiply
    158,632.52x = 218,915.40 × 87,011.24
  4. Step 4: Simplify right side
    158,632.52x = 19,048,100,409.10
  5. Step 5: Solve for x
    x = 19,048,100,409.10/158,632.52
  6. Step 6: Final answer
    x = 120,076.89

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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.