Home / 133,146.86-183,741.73-72,717.52

Finding the Fourth Proportional to 133,146.86, 183,741.73 and 72,717.52

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Solution

The fourth proportional to 133,146.86, 183,741.73 and 72,717.52 is: 100,349.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,146.86 : 183,741.73 = 72,717.52 : x
  2. Step 2: Convert to fraction form
    133,146.86/183,741.73 = 72,717.52/x
  3. Step 3: Cross multiply
    133,146.86x = 183,741.73 × 72,717.52
  4. Step 4: Simplify right side
    133,146.86x = 13,361,242,926.11
  5. Step 5: Solve for x
    x = 13,361,242,926.11/133,146.86
  6. Step 6: Final answer
    x = 100,349.67

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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.