Home / 131,416.13-181,354.32-70,986.77

Finding the Fourth Proportional to 131,416.13, 181,354.32 and 70,986.77

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Solution

The fourth proportional to 131,416.13, 181,354.32 and 70,986.77 is: 97,961.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,416.13 : 181,354.32 = 70,986.77 : x
  2. Step 2: Convert to fraction form
    131,416.13/181,354.32 = 70,986.77/x
  3. Step 3: Cross multiply
    131,416.13x = 181,354.32 × 70,986.77
  4. Step 4: Simplify right side
    131,416.13x = 12,873,756,140.64
  5. Step 5: Solve for x
    x = 12,873,756,140.64/131,416.13
  6. Step 6: Final answer
    x = 97,961.77

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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.