Home / 140,211.32-193,490.63-76,549.11

Finding the Fourth Proportional to 140,211.32, 193,490.63 and 76,549.11

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Solution

The fourth proportional to 140,211.32, 193,490.63 and 76,549.11 is: 105,637.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,211.32 : 193,490.63 = 76,549.11 : x
  2. Step 2: Convert to fraction form
    140,211.32/193,490.63 = 76,549.11/x
  3. Step 3: Cross multiply
    140,211.32x = 193,490.63 × 76,549.11
  4. Step 4: Simplify right side
    140,211.32x = 14,811,535,519.84
  5. Step 5: Solve for x
    x = 14,811,535,519.84/140,211.32
  6. Step 6: Final answer
    x = 105,637.23

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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.