Home / 121,400.12-182,121.70-37,158.42

Finding the Fourth Proportional to 121,400.12, 182,121.70 and 37,158.42

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Solution

The fourth proportional to 121,400.12, 182,121.70 and 37,158.42 is: 55,744.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,400.12 : 182,121.70 = 37,158.42 : x
  2. Step 2: Convert to fraction form
    121,400.12/182,121.70 = 37,158.42/x
  3. Step 3: Cross multiply
    121,400.12x = 182,121.70 × 37,158.42
  4. Step 4: Simplify right side
    121,400.12x = 6,767,354,619.71
  5. Step 5: Solve for x
    x = 6,767,354,619.71/121,400.12
  6. Step 6: Final answer
    x = 55,744.22

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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.