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Finding the Fourth Proportional to 141,415.44, 212,123.15 and 99,483.15

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Solution

The fourth proportional to 141,415.44, 212,123.15 and 99,483.15 is: 149,224.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,415.44 : 212,123.15 = 99,483.15 : x
  2. Step 2: Convert to fraction form
    141,415.44/212,123.15 = 99,483.15/x
  3. Step 3: Cross multiply
    141,415.44x = 212,123.15 × 99,483.15
  4. Step 4: Simplify right side
    141,415.44x = 21,102,679,160.55
  5. Step 5: Solve for x
    x = 21,102,679,160.55/141,415.44
  6. Step 6: Final answer
    x = 149,224.72

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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.