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Finding the Fourth Proportional to 133,237.88, 183,868.08 and 72,809.06

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Solution

The fourth proportional to 133,237.88, 183,868.08 and 72,809.06 is: 100,476.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,237.88 : 183,868.08 = 72,809.06 : x
  2. Step 2: Convert to fraction form
    133,237.88/183,868.08 = 72,809.06/x
  3. Step 3: Cross multiply
    133,237.88x = 183,868.08 × 72,809.06
  4. Step 4: Simplify right side
    133,237.88x = 13,387,262,068.80
  5. Step 5: Solve for x
    x = 13,387,262,068.80/133,237.88
  6. Step 6: Final answer
    x = 100,476.40

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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.