Home / 145,709.18-218,553.73-89,557.96

Finding the Fourth Proportional to 145,709.18, 218,553.73 and 89,557.96

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Solution

The fourth proportional to 145,709.18, 218,553.73 and 89,557.96 is: 134,330.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,709.18 : 218,553.73 = 89,557.96 : x
  2. Step 2: Convert to fraction form
    145,709.18/218,553.73 = 89,557.96/x
  3. Step 3: Cross multiply
    145,709.18x = 218,553.73 × 89,557.96
  4. Step 4: Simplify right side
    145,709.18x = 19,573,224,668.63
  5. Step 5: Solve for x
    x = 19,573,224,668.63/145,709.18
  6. Step 6: Final answer
    x = 134,330.76

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.