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Finding the Fourth Proportional to 103,675.70, 155,221.95 and 93,178.10

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Solution

The fourth proportional to 103,675.70, 155,221.95 and 93,178.10 is: 139,505.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,675.70 : 155,221.95 = 93,178.10 : x
  2. Step 2: Convert to fraction form
    103,675.70/155,221.95 = 93,178.10/x
  3. Step 3: Cross multiply
    103,675.70x = 155,221.95 × 93,178.10
  4. Step 4: Simplify right side
    103,675.70x = 14,463,286,379.30
  5. Step 5: Solve for x
    x = 14,463,286,379.30/103,675.70
  6. Step 6: Final answer
    x = 139,505.08

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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.