Home / 133,263.83-183,898.76-72,835.20

Finding the Fourth Proportional to 133,263.83, 183,898.76 and 72,835.20

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Solution

The fourth proportional to 133,263.83, 183,898.76 and 72,835.20 is: 100,509.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,263.83 : 183,898.76 = 72,835.20 : x
  2. Step 2: Convert to fraction form
    133,263.83/183,898.76 = 72,835.20/x
  3. Step 3: Cross multiply
    133,263.83x = 183,898.76 × 72,835.20
  4. Step 4: Simplify right side
    133,263.83x = 13,394,302,600.18
  5. Step 5: Solve for x
    x = 13,394,302,600.18/133,263.83
  6. Step 6: Final answer
    x = 100,509.66

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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.