Home / 83,360.37-115,090.98-74,392.47

Finding the Fourth Proportional to 83,360.37, 115,090.98 and 74,392.47

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Solution

The fourth proportional to 83,360.37, 115,090.98 and 74,392.47 is: 102,709.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,360.37 : 115,090.98 = 74,392.47 : x
  2. Step 2: Convert to fraction form
    83,360.37/115,090.98 = 74,392.47/x
  3. Step 3: Cross multiply
    83,360.37x = 115,090.98 × 74,392.47
  4. Step 4: Simplify right side
    83,360.37x = 8,561,902,276.92
  5. Step 5: Solve for x
    x = 8,561,902,276.92/83,360.37
  6. Step 6: Final answer
    x = 102,709.50

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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.