Home / 185,711.46-256,281.81-100,828.53

Finding the Fourth Proportional to 185,711.46, 256,281.81 and 100,828.53

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Solution

The fourth proportional to 185,711.46, 256,281.81 and 100,828.53 is: 139,143.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,711.46 : 256,281.81 = 100,828.53 : x
  2. Step 2: Convert to fraction form
    185,711.46/256,281.81 = 100,828.53/x
  3. Step 3: Cross multiply
    185,711.46x = 256,281.81 × 100,828.53
  4. Step 4: Simplify right side
    185,711.46x = 25,840,518,168.04
  5. Step 5: Solve for x
    x = 25,840,518,168.04/185,711.46
  6. Step 6: Final answer
    x = 139,143.37

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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.