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Finding the Fourth Proportional to 145,722.35, 218,541.47 and 61,501.39

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Solution

The fourth proportional to 145,722.35, 218,541.47 and 61,501.39 is: 92,234.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,722.35 : 218,541.47 = 61,501.39 : x
  2. Step 2: Convert to fraction form
    145,722.35/218,541.47 = 61,501.39/x
  3. Step 3: Cross multiply
    145,722.35x = 218,541.47 × 61,501.39
  4. Step 4: Simplify right side
    145,722.35x = 13,440,604,177.64
  5. Step 5: Solve for x
    x = 13,440,604,177.64/145,722.35
  6. Step 6: Final answer
    x = 92,234.34

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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.