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Finding the Fourth Proportional to 133,907.84, 200,721.63 and 45,130.69

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Solution

The fourth proportional to 133,907.84, 200,721.63 and 45,130.69 is: 67,648.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,907.84 : 200,721.63 = 45,130.69 : x
  2. Step 2: Convert to fraction form
    133,907.84/200,721.63 = 45,130.69/x
  3. Step 3: Cross multiply
    133,907.84x = 200,721.63 × 45,130.69
  4. Step 4: Simplify right side
    133,907.84x = 9,058,704,656.22
  5. Step 5: Solve for x
    x = 9,058,704,656.22/133,907.84
  6. Step 6: Final answer
    x = 67,648.80

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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.