Home / 140,501.68-193,889.64-76,839.28

Finding the Fourth Proportional to 140,501.68, 193,889.64 and 76,839.28

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Solution

The fourth proportional to 140,501.68, 193,889.64 and 76,839.28 is: 106,036.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,501.68 : 193,889.64 = 76,839.28 : x
  2. Step 2: Convert to fraction form
    140,501.68/193,889.64 = 76,839.28/x
  3. Step 3: Cross multiply
    140,501.68x = 193,889.64 × 76,839.28
  4. Step 4: Simplify right side
    140,501.68x = 14,898,340,337.06
  5. Step 5: Solve for x
    x = 14,898,340,337.06/140,501.68
  6. Step 6: Final answer
    x = 106,036.74

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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.