Home / 185,641.27-256,178.10-100,756.51

Finding the Fourth Proportional to 185,641.27, 256,178.10 and 100,756.51

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Solution

The fourth proportional to 185,641.27, 256,178.10 and 100,756.51 is: 139,040.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,641.27 : 256,178.10 = 100,756.51 : x
  2. Step 2: Convert to fraction form
    185,641.27/256,178.10 = 100,756.51/x
  3. Step 3: Cross multiply
    185,641.27x = 256,178.10 × 100,756.51
  4. Step 4: Simplify right side
    185,641.27x = 25,811,611,294.43
  5. Step 5: Solve for x
    x = 25,811,611,294.43/185,641.27
  6. Step 6: Final answer
    x = 139,040.26

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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.