Home / 209,931.54-314,829.09-69,652.50

Finding the Fourth Proportional to 209,931.54, 314,829.09 and 69,652.50

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Solution

The fourth proportional to 209,931.54, 314,829.09 and 69,652.50 is: 104,456.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,931.54 : 314,829.09 = 69,652.50 : x
  2. Step 2: Convert to fraction form
    209,931.54/314,829.09 = 69,652.50/x
  3. Step 3: Cross multiply
    209,931.54x = 314,829.09 × 69,652.50
  4. Step 4: Simplify right side
    209,931.54x = 21,928,633,191.23
  5. Step 5: Solve for x
    x = 21,928,633,191.23/209,931.54
  6. Step 6: Final answer
    x = 104,456.12

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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.