Home / 140,626.80-210,832.20-70,556.40

Finding the Fourth Proportional to 140,626.80, 210,832.20 and 70,556.40

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Solution

The fourth proportional to 140,626.80, 210,832.20 and 70,556.40 is: 105,780.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,626.80 : 210,832.20 = 70,556.40 : x
  2. Step 2: Convert to fraction form
    140,626.80/210,832.20 = 70,556.40/x
  3. Step 3: Cross multiply
    140,626.80x = 210,832.20 × 70,556.40
  4. Step 4: Simplify right side
    140,626.80x = 14,875,561,036.08
  5. Step 5: Solve for x
    x = 14,875,561,036.08/140,626.80
  6. Step 6: Final answer
    x = 105,780.41

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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.