Home / 185,315.06-255,734.88-100,432.10

Finding the Fourth Proportional to 185,315.06, 255,734.88 and 100,432.10

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Solution

The fourth proportional to 185,315.06, 255,734.88 and 100,432.10 is: 138,596.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,315.06 : 255,734.88 = 100,432.10 : x
  2. Step 2: Convert to fraction form
    185,315.06/255,734.88 = 100,432.10/x
  3. Step 3: Cross multiply
    185,315.06x = 255,734.88 × 100,432.10
  4. Step 4: Simplify right side
    185,315.06x = 25,683,991,041.65
  5. Step 5: Solve for x
    x = 25,683,991,041.65/185,315.06
  6. Step 6: Final answer
    x = 138,596.35

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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.