Home / 109,072.90-150,516.75-61,328.98

Finding the Fourth Proportional to 109,072.90, 150,516.75 and 61,328.98

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Solution

The fourth proportional to 109,072.90, 150,516.75 and 61,328.98 is: 84,631.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,072.90 : 150,516.75 = 61,328.98 : x
  2. Step 2: Convert to fraction form
    109,072.90/150,516.75 = 61,328.98/x
  3. Step 3: Cross multiply
    109,072.90x = 150,516.75 × 61,328.98
  4. Step 4: Simplify right side
    109,072.90x = 9,231,038,750.42
  5. Step 5: Solve for x
    x = 9,231,038,750.42/109,072.90
  6. Step 6: Final answer
    x = 84,631.83

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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.