Home / 117,559.16-162,281.28-79,370.42

Finding the Fourth Proportional to 117,559.16, 162,281.28 and 79,370.42

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Solution

The fourth proportional to 117,559.16, 162,281.28 and 79,370.42 is: 109,564.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,559.16 : 162,281.28 = 79,370.42 : x
  2. Step 2: Convert to fraction form
    117,559.16/162,281.28 = 79,370.42/x
  3. Step 3: Cross multiply
    117,559.16x = 162,281.28 × 79,370.42
  4. Step 4: Simplify right side
    117,559.16x = 12,880,333,351.74
  5. Step 5: Solve for x
    x = 12,880,333,351.74/117,559.16
  6. Step 6: Final answer
    x = 109,564.69

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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.