Home / 209,930.72-314,896.08-69,689.34

Finding the Fourth Proportional to 209,930.72, 314,896.08 and 69,689.34

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Solution

The fourth proportional to 209,930.72, 314,896.08 and 69,689.34 is: 104,534.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,930.72 : 314,896.08 = 69,689.34 : x
  2. Step 2: Convert to fraction form
    209,930.72/314,896.08 = 69,689.34/x
  3. Step 3: Cross multiply
    209,930.72x = 314,896.08 × 69,689.34
  4. Step 4: Simplify right side
    209,930.72x = 21,944,899,983.79
  5. Step 5: Solve for x
    x = 21,944,899,983.79/209,930.72
  6. Step 6: Final answer
    x = 104,534.01

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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.