Home / 130,235.60-195,418.20-74,118.80

Finding the Fourth Proportional to 130,235.60, 195,418.20 and 74,118.80

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Solution

The fourth proportional to 130,235.60, 195,418.20 and 74,118.80 is: 111,215.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,235.60 : 195,418.20 = 74,118.80 : x
  2. Step 2: Convert to fraction form
    130,235.60/195,418.20 = 74,118.80/x
  3. Step 3: Cross multiply
    130,235.60x = 195,418.20 × 74,118.80
  4. Step 4: Simplify right side
    130,235.60x = 14,484,162,482.16
  5. Step 5: Solve for x
    x = 14,484,162,482.16/130,235.60
  6. Step 6: Final answer
    x = 111,215.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.