Home / 89,068.20-133,343.10-78,700.20

Finding the Fourth Proportional to 89,068.20, 133,343.10 and 78,700.20

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Solution

The fourth proportional to 89,068.20, 133,343.10 and 78,700.20 is: 117,821.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,068.20 : 133,343.10 = 78,700.20 : x
  2. Step 2: Convert to fraction form
    89,068.20/133,343.10 = 78,700.20/x
  3. Step 3: Cross multiply
    89,068.20x = 133,343.10 × 78,700.20
  4. Step 4: Simplify right side
    89,068.20x = 10,494,128,638.62
  5. Step 5: Solve for x
    x = 10,494,128,638.62/89,068.20
  6. Step 6: Final answer
    x = 117,821.27

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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.