Home / 90,142.75-134,937.33-56,706.26

Finding the Fourth Proportional to 90,142.75, 134,937.33 and 56,706.26

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Solution

The fourth proportional to 90,142.75, 134,937.33 and 56,706.26 is: 84,885.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,142.75 : 134,937.33 = 56,706.26 : x
  2. Step 2: Convert to fraction form
    90,142.75/134,937.33 = 56,706.26/x
  3. Step 3: Cross multiply
    90,142.75x = 134,937.33 × 56,706.26
  4. Step 4: Simplify right side
    90,142.75x = 7,651,790,981.34
  5. Step 5: Solve for x
    x = 7,651,790,981.34/90,142.75
  6. Step 6: Final answer
    x = 84,885.26

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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.