Home / 117,574.50-162,278.34-72,291.24

Finding the Fourth Proportional to 117,574.50, 162,278.34 and 72,291.24

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Solution

The fourth proportional to 117,574.50, 162,278.34 and 72,291.24 is: 99,777.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,574.50 : 162,278.34 = 72,291.24 : x
  2. Step 2: Convert to fraction form
    117,574.50/162,278.34 = 72,291.24/x
  3. Step 3: Cross multiply
    117,574.50x = 162,278.34 × 72,291.24
  4. Step 4: Simplify right side
    117,574.50x = 11,731,302,423.74
  5. Step 5: Solve for x
    x = 11,731,302,423.74/117,574.50
  6. Step 6: Final answer
    x = 99,777.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.