Home / 160,305.12-240,328.08-66,880.80

Finding the Fourth Proportional to 160,305.12, 240,328.08 and 66,880.80

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Solution

The fourth proportional to 160,305.12, 240,328.08 and 66,880.80 is: 100,267.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,305.12 : 240,328.08 = 66,880.80 : x
  2. Step 2: Convert to fraction form
    160,305.12/240,328.08 = 66,880.80/x
  3. Step 3: Cross multiply
    160,305.12x = 240,328.08 × 66,880.80
  4. Step 4: Simplify right side
    160,305.12x = 16,073,334,252.86
  5. Step 5: Solve for x
    x = 16,073,334,252.86/160,305.12
  6. Step 6: Final answer
    x = 100,267.13

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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.