Home / 133,069.50-183,667.10-87,755.67

Finding the Fourth Proportional to 133,069.50, 183,667.10 and 87,755.67

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Solution

The fourth proportional to 133,069.50, 183,667.10 and 87,755.67 is: 121,123.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,069.50 : 183,667.10 = 87,755.67 : x
  2. Step 2: Convert to fraction form
    133,069.50/183,667.10 = 87,755.67/x
  3. Step 3: Cross multiply
    133,069.50x = 183,667.10 × 87,755.67
  4. Step 4: Simplify right side
    133,069.50x = 16,117,828,978.68
  5. Step 5: Solve for x
    x = 16,117,828,978.68/133,069.50
  6. Step 6: Final answer
    x = 121,123.39

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1.5x scale

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.