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Finding the Fourth Proportional to 113,010, 155,958.66 and 62,709

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Solution

The fourth proportional to 113,010, 155,958.66 and 62,709 is: 86,541.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,010 : 155,958.66 = 62,709 : x
  2. Step 2: Convert to fraction form
    113,010/155,958.66 = 62,709/x
  3. Step 3: Cross multiply
    113,010x = 155,958.66 × 62,709
  4. Step 4: Simplify right side
    113,010x = 9,780,011,609.94
  5. Step 5: Solve for x
    x = 9,780,011,609.94/113,010
  6. Step 6: Final answer
    x = 86,541.12

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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.