Home / 138,630.15-191,262.62-113,092.36

Finding the Fourth Proportional to 138,630.15, 191,262.62 and 113,092.36

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Solution

The fourth proportional to 138,630.15, 191,262.62 and 113,092.36 is: 156,029.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,630.15 : 191,262.62 = 113,092.36 : x
  2. Step 2: Convert to fraction form
    138,630.15/191,262.62 = 113,092.36/x
  3. Step 3: Cross multiply
    138,630.15x = 191,262.62 × 113,092.36
  4. Step 4: Simplify right side
    138,630.15x = 21,630,341,075.58
  5. Step 5: Solve for x
    x = 21,630,341,075.58/138,630.15
  6. Step 6: Final answer
    x = 156,029.13

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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.