Home / 131,628.36-181,647.15-74,279.82

Finding the Fourth Proportional to 131,628.36, 181,647.15 and 74,279.82

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Solution

The fourth proportional to 131,628.36, 181,647.15 and 74,279.82 is: 102,506.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,628.36 : 181,647.15 = 74,279.82 : x
  2. Step 2: Convert to fraction form
    131,628.36/181,647.15 = 74,279.82/x
  3. Step 3: Cross multiply
    131,628.36x = 181,647.15 × 74,279.82
  4. Step 4: Simplify right side
    131,628.36x = 13,492,717,605.51
  5. Step 5: Solve for x
    x = 13,492,717,605.51/131,628.36
  6. Step 6: Final answer
    x = 102,506.16

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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.