Home / 154,099.48-212,636.36-86,107.92

Finding the Fourth Proportional to 154,099.48, 212,636.36 and 86,107.92

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Solution

The fourth proportional to 154,099.48, 212,636.36 and 86,107.92 is: 118,817.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,099.48 : 212,636.36 = 86,107.92 : x
  2. Step 2: Convert to fraction form
    154,099.48/212,636.36 = 86,107.92/x
  3. Step 3: Cross multiply
    154,099.48x = 212,636.36 × 86,107.92
  4. Step 4: Simplify right side
    154,099.48x = 18,309,674,675.97
  5. Step 5: Solve for x
    x = 18,309,674,675.97/154,099.48
  6. Step 6: Final answer
    x = 118,817.24

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1.5x scale

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.