Home / 131,464.48-181,458.15-77,768.17

Finding the Fourth Proportional to 131,464.48, 181,458.15 and 77,768.17

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Solution

The fourth proportional to 131,464.48, 181,458.15 and 77,768.17 is: 107,342.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,464.48 : 181,458.15 = 77,768.17 : x
  2. Step 2: Convert to fraction form
    131,464.48/181,458.15 = 77,768.17/x
  3. Step 3: Cross multiply
    131,464.48x = 181,458.15 × 77,768.17
  4. Step 4: Simplify right side
    131,464.48x = 14,111,668,257.09
  5. Step 5: Solve for x
    x = 14,111,668,257.09/131,464.48
  6. Step 6: Final answer
    x = 107,342.06

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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.