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Finding the Fourth Proportional to 99,715.98, 149,460.90 and 40,477.44

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Solution

The fourth proportional to 99,715.98, 149,460.90 and 40,477.44 is: 60,670.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,715.98 : 149,460.90 = 40,477.44 : x
  2. Step 2: Convert to fraction form
    99,715.98/149,460.90 = 40,477.44/x
  3. Step 3: Cross multiply
    99,715.98x = 149,460.90 × 40,477.44
  4. Step 4: Simplify right side
    99,715.98x = 6,049,794,612.10
  5. Step 5: Solve for x
    x = 6,049,794,612.10/99,715.98
  6. Step 6: Final answer
    x = 60,670.26

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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.