Home / 145,211.70-217,831-56,471.88

Finding the Fourth Proportional to 145,211.70, 217,831 and 56,471.88

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Solution

The fourth proportional to 145,211.70, 217,831 and 56,471.88 is: 84,713.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,211.70 : 217,831 = 56,471.88 : x
  2. Step 2: Convert to fraction form
    145,211.70/217,831 = 56,471.88/x
  3. Step 3: Cross multiply
    145,211.70x = 217,831 × 56,471.88
  4. Step 4: Simplify right side
    145,211.70x = 12,301,326,092.28
  5. Step 5: Solve for x
    x = 12,301,326,092.28/145,211.70
  6. Step 6: Final answer
    x = 84,713.05

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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.