Home / 140,437.45-193,805.99-83,853.77

Finding the Fourth Proportional to 140,437.45, 193,805.99 and 83,853.77

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Solution

The fourth proportional to 140,437.45, 193,805.99 and 83,853.77 is: 115,719.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,437.45 : 193,805.99 = 83,853.77 : x
  2. Step 2: Convert to fraction form
    140,437.45/193,805.99 = 83,853.77/x
  3. Step 3: Cross multiply
    140,437.45x = 193,805.99 × 83,853.77
  4. Step 4: Simplify right side
    140,437.45x = 16,251,362,490.81
  5. Step 5: Solve for x
    x = 16,251,362,490.81/140,437.45
  6. Step 6: Final answer
    x = 115,719.58

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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.