Home / 140,344.87-193,673.64-76,681.30

Finding the Fourth Proportional to 140,344.87, 193,673.64 and 76,681.30

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Solution

The fourth proportional to 140,344.87, 193,673.64 and 76,681.30 is: 105,818.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,344.87 : 193,673.64 = 76,681.30 : x
  2. Step 2: Convert to fraction form
    140,344.87/193,673.64 = 76,681.30/x
  3. Step 3: Cross multiply
    140,344.87x = 193,673.64 × 76,681.30
  4. Step 4: Simplify right side
    140,344.87x = 14,851,146,490.93
  5. Step 5: Solve for x
    x = 14,851,146,490.93/140,344.87
  6. Step 6: Final answer
    x = 105,818.95

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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.