Home / 133,116.30-183,707.93-72,692.55

Finding the Fourth Proportional to 133,116.30, 183,707.93 and 72,692.55

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Solution

The fourth proportional to 133,116.30, 183,707.93 and 72,692.55 is: 100,319.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,116.30 : 183,707.93 = 72,692.55 : x
  2. Step 2: Convert to fraction form
    133,116.30/183,707.93 = 72,692.55/x
  3. Step 3: Cross multiply
    133,116.30x = 183,707.93 × 72,692.55
  4. Step 4: Simplify right side
    133,116.30x = 13,354,198,068.65
  5. Step 5: Solve for x
    x = 13,354,198,068.65/133,116.30
  6. Step 6: Final answer
    x = 100,319.78

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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.