Home / 145,105.22-217,678.62-45,274.34

Finding the Fourth Proportional to 145,105.22, 217,678.62 and 45,274.34

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Solution

The fourth proportional to 145,105.22, 217,678.62 and 45,274.34 is: 67,918.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,105.22 : 217,678.62 = 45,274.34 : x
  2. Step 2: Convert to fraction form
    145,105.22/217,678.62 = 45,274.34/x
  3. Step 3: Cross multiply
    145,105.22x = 217,678.62 × 45,274.34
  4. Step 4: Simplify right side
    145,105.22x = 9,855,255,852.61
  5. Step 5: Solve for x
    x = 9,855,255,852.61/145,105.22
  6. Step 6: Final answer
    x = 67,918.00

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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.