Home / 185,079.18-255,409.74-100,196.40

Finding the Fourth Proportional to 185,079.18, 255,409.74 and 100,196.40

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Solution

The fourth proportional to 185,079.18, 255,409.74 and 100,196.40 is: 138,271.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,079.18 : 255,409.74 = 100,196.40 : x
  2. Step 2: Convert to fraction form
    185,079.18/255,409.74 = 100,196.40/x
  3. Step 3: Cross multiply
    185,079.18x = 255,409.74 × 100,196.40
  4. Step 4: Simplify right side
    185,079.18x = 25,591,136,472.94
  5. Step 5: Solve for x
    x = 25,591,136,472.94/185,079.18
  6. Step 6: Final answer
    x = 138,271.29

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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.