Home / 207,120-310,683.78-64,962.09

Finding the Fourth Proportional to 207,120, 310,683.78 and 64,962.09

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Solution

The fourth proportional to 207,120, 310,683.78 and 64,962.09 is: 97,444.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,120 : 310,683.78 = 64,962.09 : x
  2. Step 2: Convert to fraction form
    207,120/310,683.78 = 64,962.09/x
  3. Step 3: Cross multiply
    207,120x = 310,683.78 × 64,962.09
  4. Step 4: Simplify right side
    207,120x = 20,182,667,677.90
  5. Step 5: Solve for x
    x = 20,182,667,677.90/207,120
  6. Step 6: Final answer
    x = 97,444.32

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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.