Home / 209,006.91-288,549.09-137,594.52

Finding the Fourth Proportional to 209,006.91, 288,549.09 and 137,594.52

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Solution

The fourth proportional to 209,006.91, 288,549.09 and 137,594.52 is: 189,959.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,006.91 : 288,549.09 = 137,594.52 : x
  2. Step 2: Convert to fraction form
    209,006.91/288,549.09 = 137,594.52/x
  3. Step 3: Cross multiply
    209,006.91x = 288,549.09 × 137,594.52
  4. Step 4: Simplify right side
    209,006.91x = 39,702,773,534.99
  5. Step 5: Solve for x
    x = 39,702,773,534.99/209,006.91
  6. Step 6: Final answer
    x = 189,959.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.