Home / 133,487.51-184,279.41-76,887.95

Finding the Fourth Proportional to 133,487.51, 184,279.41 and 76,887.95

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Solution

The fourth proportional to 133,487.51, 184,279.41 and 76,887.95 is: 106,143.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,487.51 : 184,279.41 = 76,887.95 : x
  2. Step 2: Convert to fraction form
    133,487.51/184,279.41 = 76,887.95/x
  3. Step 3: Cross multiply
    133,487.51x = 184,279.41 × 76,887.95
  4. Step 4: Simplify right side
    133,487.51x = 14,168,865,140.71
  5. Step 5: Solve for x
    x = 14,168,865,140.71/133,487.51
  6. Step 6: Final answer
    x = 106,143.76

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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.