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Finding the Fourth Proportional to 146,671.50, 202,406.70 and 79,603.50

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Solution

The fourth proportional to 146,671.50, 202,406.70 and 79,603.50 is: 109,852.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,671.50 : 202,406.70 = 79,603.50 : x
  2. Step 2: Convert to fraction form
    146,671.50/202,406.70 = 79,603.50/x
  3. Step 3: Cross multiply
    146,671.50x = 202,406.70 × 79,603.50
  4. Step 4: Simplify right side
    146,671.50x = 16,112,281,743.45
  5. Step 5: Solve for x
    x = 16,112,281,743.45/146,671.50
  6. Step 6: Final answer
    x = 109,852.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.