Home / 131,690.36-181,733.18-71,261.00

Finding the Fourth Proportional to 131,690.36, 181,733.18 and 71,261.00

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Solution

The fourth proportional to 131,690.36, 181,733.18 and 71,261.00 is: 98,340.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,690.36 : 181,733.18 = 71,261.00 : x
  2. Step 2: Convert to fraction form
    131,690.36/181,733.18 = 71,261.00/x
  3. Step 3: Cross multiply
    131,690.36x = 181,733.18 × 71,261.00
  4. Step 4: Simplify right side
    131,690.36x = 12,950,488,416.16
  5. Step 5: Solve for x
    x = 12,950,488,416.16/131,690.36
  6. Step 6: Final answer
    x = 98,340.44

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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.