Home / 133,114.20-183,705.06-72,690.47

Finding the Fourth Proportional to 133,114.20, 183,705.06 and 72,690.47

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Solution

The fourth proportional to 133,114.20, 183,705.06 and 72,690.47 is: 100,316.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,114.20 : 183,705.06 = 72,690.47 : x
  2. Step 2: Convert to fraction form
    133,114.20/183,705.06 = 72,690.47/x
  3. Step 3: Cross multiply
    133,114.20x = 183,705.06 × 72,690.47
  4. Step 4: Simplify right side
    133,114.20x = 13,353,607,152.78
  5. Step 5: Solve for x
    x = 13,353,607,152.78/133,114.20
  6. Step 6: Final answer
    x = 100,316.92

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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.