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Finding the Fourth Proportional to 147,284.26, 220,720.44 and 79,670.32

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Solution

The fourth proportional to 147,284.26, 220,720.44 and 79,670.32 is: 119,394.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,284.26 : 220,720.44 = 79,670.32 : x
  2. Step 2: Convert to fraction form
    147,284.26/220,720.44 = 79,670.32/x
  3. Step 3: Cross multiply
    147,284.26x = 220,720.44 × 79,670.32
  4. Step 4: Simplify right side
    147,284.26x = 17,584,868,085.34
  5. Step 5: Solve for x
    x = 17,584,868,085.34/147,284.26
  6. Step 6: Final answer
    x = 119,394.08

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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.