Home / 158,420.80-237,675.24-128,765.20

Finding the Fourth Proportional to 158,420.80, 237,675.24 and 128,765.20

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Solution

The fourth proportional to 158,420.80, 237,675.24 and 128,765.20 is: 193,183.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,420.80 : 237,675.24 = 128,765.20 : x
  2. Step 2: Convert to fraction form
    158,420.80/237,675.24 = 128,765.20/x
  3. Step 3: Cross multiply
    158,420.80x = 237,675.24 × 128,765.20
  4. Step 4: Simplify right side
    158,420.80x = 30,604,299,813.65
  5. Step 5: Solve for x
    x = 30,604,299,813.65/158,420.80
  6. Step 6: Final answer
    x = 193,183.60

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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.