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Finding the Fourth Proportional to 145,403.98, 218,106.06 and 45,571.96

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Solution

The fourth proportional to 145,403.98, 218,106.06 and 45,571.96 is: 68,357.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,403.98 : 218,106.06 = 45,571.96 : x
  2. Step 2: Convert to fraction form
    145,403.98/218,106.06 = 45,571.96/x
  3. Step 3: Cross multiply
    145,403.98x = 218,106.06 × 45,571.96
  4. Step 4: Simplify right side
    145,403.98x = 9,939,520,642.08
  5. Step 5: Solve for x
    x = 9,939,520,642.08/145,403.98
  6. Step 6: Final answer
    x = 68,357.97

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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.