Home / 152,156.76-209,986.62-85,089.24

Finding the Fourth Proportional to 152,156.76, 209,986.62 and 85,089.24

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Solution

The fourth proportional to 152,156.76, 209,986.62 and 85,089.24 is: 117,428.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,156.76 : 209,986.62 = 85,089.24 : x
  2. Step 2: Convert to fraction form
    152,156.76/209,986.62 = 85,089.24/x
  3. Step 3: Cross multiply
    152,156.76x = 209,986.62 × 85,089.24
  4. Step 4: Simplify right side
    152,156.76x = 17,867,601,905.97
  5. Step 5: Solve for x
    x = 17,867,601,905.97/152,156.76
  6. Step 6: Final answer
    x = 117,428.91

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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.