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Finding the Fourth Proportional to 113,510, 156,644.88 and 63,210.08

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Solution

The fourth proportional to 113,510, 156,644.88 and 63,210.08 is: 87,230.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,510 : 156,644.88 = 63,210.08 : x
  2. Step 2: Convert to fraction form
    113,510/156,644.88 = 63,210.08/x
  3. Step 3: Cross multiply
    113,510x = 156,644.88 × 63,210.08
  4. Step 4: Simplify right side
    113,510x = 9,901,535,396.39
  5. Step 5: Solve for x
    x = 9,901,535,396.39/113,510
  6. Step 6: Final answer
    x = 87,230.51

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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.