Home / 101,801.04-152,627.68-68,438.32

Finding the Fourth Proportional to 101,801.04, 152,627.68 and 68,438.32

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Solution

The fourth proportional to 101,801.04, 152,627.68 and 68,438.32 is: 102,607.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,801.04 : 152,627.68 = 68,438.32 : x
  2. Step 2: Convert to fraction form
    101,801.04/152,627.68 = 68,438.32/x
  3. Step 3: Cross multiply
    101,801.04x = 152,627.68 × 68,438.32
  4. Step 4: Simplify right side
    101,801.04x = 10,445,582,004.70
  5. Step 5: Solve for x
    x = 10,445,582,004.70/101,801.04
  6. Step 6: Final answer
    x = 102,607.81

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1.5x scale

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.