Home / 131,558.65-181,633.95-91,258.31

Finding the Fourth Proportional to 131,558.65, 181,633.95 and 91,258.31

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Solution

The fourth proportional to 131,558.65, 181,633.95 and 91,258.31 is: 125,994.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,558.65 : 181,633.95 = 91,258.31 : x
  2. Step 2: Convert to fraction form
    131,558.65/181,633.95 = 91,258.31/x
  3. Step 3: Cross multiply
    131,558.65x = 181,633.95 × 91,258.31
  4. Step 4: Simplify right side
    131,558.65x = 16,575,607,315.62
  5. Step 5: Solve for x
    x = 16,575,607,315.62/131,558.65
  6. Step 6: Final answer
    x = 125,994.05

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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.