Home / 131,366.25-181,285.65-74,777.63

Finding the Fourth Proportional to 131,366.25, 181,285.65 and 74,777.63

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Solution

The fourth proportional to 131,366.25, 181,285.65 and 74,777.63 is: 103,193.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,366.25 : 181,285.65 = 74,777.63 : x
  2. Step 2: Convert to fraction form
    131,366.25/181,285.65 = 74,777.63/x
  3. Step 3: Cross multiply
    131,366.25x = 181,285.65 × 74,777.63
  4. Step 4: Simplify right side
    131,366.25x = 13,556,110,353.58
  5. Step 5: Solve for x
    x = 13,556,110,353.58/131,366.25
  6. Step 6: Final answer
    x = 103,193.25

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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.