Home / 131,463.86-181,457.29-77,767.54

Finding the Fourth Proportional to 131,463.86, 181,457.29 and 77,767.54

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Solution

The fourth proportional to 131,463.86, 181,457.29 and 77,767.54 is: 107,341.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,463.86 : 181,457.29 = 77,767.54 : x
  2. Step 2: Convert to fraction form
    131,463.86/181,457.29 = 77,767.54/x
  3. Step 3: Cross multiply
    131,463.86x = 181,457.29 × 77,767.54
  4. Step 4: Simplify right side
    131,463.86x = 14,111,487,058.37
  5. Step 5: Solve for x
    x = 14,111,487,058.37/131,463.86
  6. Step 6: Final answer
    x = 107,341.19

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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.