Home / 138,263.15-190,808.93-77,833.91

Finding the Fourth Proportional to 138,263.15, 190,808.93 and 77,833.91

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Solution

The fourth proportional to 138,263.15, 190,808.93 and 77,833.91 is: 107,414.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,263.15 : 190,808.93 = 77,833.91 : x
  2. Step 2: Convert to fraction form
    138,263.15/190,808.93 = 77,833.91/x
  3. Step 3: Cross multiply
    138,263.15x = 190,808.93 × 77,833.91
  4. Step 4: Simplify right side
    138,263.15x = 14,851,404,695.65
  5. Step 5: Solve for x
    x = 14,851,404,695.65/138,263.15
  6. Step 6: Final answer
    x = 107,414.05

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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.