Home / 121,429.70-182,144.55-38,323.70

Finding the Fourth Proportional to 121,429.70, 182,144.55 and 38,323.70

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Solution

The fourth proportional to 121,429.70, 182,144.55 and 38,323.70 is: 57,485.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,429.70 : 182,144.55 = 38,323.70 : x
  2. Step 2: Convert to fraction form
    121,429.70/182,144.55 = 38,323.70/x
  3. Step 3: Cross multiply
    121,429.70x = 182,144.55 × 38,323.70
  4. Step 4: Simplify right side
    121,429.70x = 6,980,453,090.84
  5. Step 5: Solve for x
    x = 6,980,453,090.84/121,429.70
  6. Step 6: Final answer
    x = 57,485.55

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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.