Home / 135,815.94-203,728.21-64,746.34

Finding the Fourth Proportional to 135,815.94, 203,728.21 and 64,746.34

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Solution

The fourth proportional to 135,815.94, 203,728.21 and 64,746.34 is: 97,121.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,815.94 : 203,728.21 = 64,746.34 : x
  2. Step 2: Convert to fraction form
    135,815.94/203,728.21 = 64,746.34/x
  3. Step 3: Cross multiply
    135,815.94x = 203,728.21 × 64,746.34
  4. Step 4: Simplify right side
    135,815.94x = 13,190,655,281.07
  5. Step 5: Solve for x
    x = 13,190,655,281.07/135,815.94
  6. Step 6: Final answer
    x = 97,121.55

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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.