Home / 147,342.84-221,079.60-77,205.48

Finding the Fourth Proportional to 147,342.84, 221,079.60 and 77,205.48

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Solution

The fourth proportional to 147,342.84, 221,079.60 and 77,205.48 is: 115,842.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,342.84 : 221,079.60 = 77,205.48 : x
  2. Step 2: Convert to fraction form
    147,342.84/221,079.60 = 77,205.48/x
  3. Step 3: Cross multiply
    147,342.84x = 221,079.60 × 77,205.48
  4. Step 4: Simplify right side
    147,342.84x = 17,068,556,636.21
  5. Step 5: Solve for x
    x = 17,068,556,636.21/147,342.84
  6. Step 6: Final answer
    x = 115,842.46

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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.