Home / 131,573.60-181,573.48-74,215.65

Finding the Fourth Proportional to 131,573.60, 181,573.48 and 74,215.65

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Solution

The fourth proportional to 131,573.60, 181,573.48 and 74,215.65 is: 102,418.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,573.60 : 181,573.48 = 74,215.65 : x
  2. Step 2: Convert to fraction form
    131,573.60/181,573.48 = 74,215.65/x
  3. Step 3: Cross multiply
    131,573.60x = 181,573.48 × 74,215.65
  4. Step 4: Simplify right side
    131,573.60x = 13,475,593,840.96
  5. Step 5: Solve for x
    x = 13,475,593,840.96/131,573.60
  6. Step 6: Final answer
    x = 102,418.68

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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.