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Finding the Fourth Proportional to 113,011, 155,960.04 and 62,710

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Solution

The fourth proportional to 113,011, 155,960.04 and 62,710 is: 86,542.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,011 : 155,960.04 = 62,710 : x
  2. Step 2: Convert to fraction form
    113,011/155,960.04 = 62,710/x
  3. Step 3: Cross multiply
    113,011x = 155,960.04 × 62,710
  4. Step 4: Simplify right side
    113,011x = 9,780,254,108.40
  5. Step 5: Solve for x
    x = 9,780,254,108.40/113,011
  6. Step 6: Final answer
    x = 86,542.50

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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.