Home / 100,192.53-138,276.51-63,895.16

Finding the Fourth Proportional to 100,192.53, 138,276.51 and 63,895.16

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Solution

The fourth proportional to 100,192.53, 138,276.51 and 63,895.16 is: 88,182.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,192.53 : 138,276.51 = 63,895.16 : x
  2. Step 2: Convert to fraction form
    100,192.53/138,276.51 = 63,895.16/x
  3. Step 3: Cross multiply
    100,192.53x = 138,276.51 × 63,895.16
  4. Step 4: Simplify right side
    100,192.53x = 8,835,199,730.69
  5. Step 5: Solve for x
    x = 8,835,199,730.69/100,192.53
  6. Step 6: Final answer
    x = 88,182.22

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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.