Home / 152,072.76-209,856.30-85,017.72

Finding the Fourth Proportional to 152,072.76, 209,856.30 and 85,017.72

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Solution

The fourth proportional to 152,072.76, 209,856.30 and 85,017.72 is: 117,322.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,072.76 : 209,856.30 = 85,017.72 : x
  2. Step 2: Convert to fraction form
    152,072.76/209,856.30 = 85,017.72/x
  3. Step 3: Cross multiply
    152,072.76x = 209,856.30 × 85,017.72
  4. Step 4: Simplify right side
    152,072.76x = 17,841,504,153.64
  5. Step 5: Solve for x
    x = 17,841,504,153.64/152,072.76
  6. Step 6: Final answer
    x = 117,322.16

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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.