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Finding the Fourth Proportional to 145,407.98, 218,112.06 and 45,575.96

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Solution

The fourth proportional to 145,407.98, 218,112.06 and 45,575.96 is: 68,363.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,407.98 : 218,112.06 = 45,575.96 : x
  2. Step 2: Convert to fraction form
    145,407.98/218,112.06 = 45,575.96/x
  3. Step 3: Cross multiply
    145,407.98x = 218,112.06 × 45,575.96
  4. Step 4: Simplify right side
    145,407.98x = 9,940,666,522.08
  5. Step 5: Solve for x
    x = 9,940,666,522.08/145,407.98
  6. Step 6: Final answer
    x = 68,363.97

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1.5x scale

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.