Home / 160,420.66-240,528.86-76,128.82

Finding the Fourth Proportional to 160,420.66, 240,528.86 and 76,128.82

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Solution

The fourth proportional to 160,420.66, 240,528.86 and 76,128.82 is: 114,144.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,420.66 : 240,528.86 = 76,128.82 : x
  2. Step 2: Convert to fraction form
    160,420.66/240,528.86 = 76,128.82/x
  3. Step 3: Cross multiply
    160,420.66x = 240,528.86 × 76,128.82
  4. Step 4: Simplify right side
    160,420.66x = 18,311,178,287.75
  5. Step 5: Solve for x
    x = 18,311,178,287.75/160,420.66
  6. Step 6: Final answer
    x = 114,144.76

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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.