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Finding the Fourth Proportional to 101,637.93, 140,328.81 and 63,455.61

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Solution

The fourth proportional to 101,637.93, 140,328.81 and 63,455.61 is: 87,611.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,637.93 : 140,328.81 = 63,455.61 : x
  2. Step 2: Convert to fraction form
    101,637.93/140,328.81 = 63,455.61/x
  3. Step 3: Cross multiply
    101,637.93x = 140,328.81 × 63,455.61
  4. Step 4: Simplify right side
    101,637.93x = 8,904,650,239.12
  5. Step 5: Solve for x
    x = 8,904,650,239.12/101,637.93
  6. Step 6: Final answer
    x = 87,611.49

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1.5x scale

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.