Home / 131,495.82-181,421.49-80,455.34

Finding the Fourth Proportional to 131,495.82, 181,421.49 and 80,455.34

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Solution

The fourth proportional to 131,495.82, 181,421.49 and 80,455.34 is: 111,002.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,495.82 : 181,421.49 = 80,455.34 : x
  2. Step 2: Convert to fraction form
    131,495.82/181,421.49 = 80,455.34/x
  3. Step 3: Cross multiply
    131,495.82x = 181,421.49 × 80,455.34
  4. Step 4: Simplify right side
    131,495.82x = 14,596,327,661.26
  5. Step 5: Solve for x
    x = 14,596,327,661.26/131,495.82
  6. Step 6: Final answer
    x = 111,002.22

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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.