Home / 133,146.61-183,743.58-75,783.13

Finding the Fourth Proportional to 133,146.61, 183,743.58 and 75,783.13

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Solution

The fourth proportional to 133,146.61, 183,743.58 and 75,783.13 is: 104,581.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,146.61 : 183,743.58 = 75,783.13 : x
  2. Step 2: Convert to fraction form
    133,146.61/183,743.58 = 75,783.13/x
  3. Step 3: Cross multiply
    133,146.61x = 183,743.58 × 75,783.13
  4. Step 4: Simplify right side
    133,146.61x = 13,924,663,609.81
  5. Step 5: Solve for x
    x = 13,924,663,609.81/133,146.61
  6. Step 6: Final answer
    x = 104,581.44

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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.