Home / 185,622.18-256,158.74-100,739.24

Finding the Fourth Proportional to 185,622.18, 256,158.74 and 100,739.24

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Solution

The fourth proportional to 185,622.18, 256,158.74 and 100,739.24 is: 139,020.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,622.18 : 256,158.74 = 100,739.24 : x
  2. Step 2: Convert to fraction form
    185,622.18/256,158.74 = 100,739.24/x
  3. Step 3: Cross multiply
    185,622.18x = 256,158.74 × 100,739.24
  4. Step 4: Simplify right side
    185,622.18x = 25,805,235,002.47
  5. Step 5: Solve for x
    x = 25,805,235,002.47/185,622.18
  6. Step 6: Final answer
    x = 139,020.21

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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.