Home / 285,084.36-427,506.06-85,433.16

Finding the Fourth Proportional to 285,084.36, 427,506.06 and 85,433.16

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Solution

The fourth proportional to 285,084.36, 427,506.06 and 85,433.16 is: 128,113.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,084.36 : 427,506.06 = 85,433.16 : x
  2. Step 2: Convert to fraction form
    285,084.36/427,506.06 = 85,433.16/x
  3. Step 3: Cross multiply
    285,084.36x = 427,506.06 × 85,433.16
  4. Step 4: Simplify right side
    285,084.36x = 36,523,193,624.95
  5. Step 5: Solve for x
    x = 36,523,193,624.95/285,084.36
  6. Step 6: Final answer
    x = 128,113.63

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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.