Home / 209,253.36-288,580.68-137,606.16

Finding the Fourth Proportional to 209,253.36, 288,580.68 and 137,606.16

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Solution

The fourth proportional to 209,253.36, 288,580.68 and 137,606.16 is: 189,772.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,253.36 : 288,580.68 = 137,606.16 : x
  2. Step 2: Convert to fraction form
    209,253.36/288,580.68 = 137,606.16/x
  3. Step 3: Cross multiply
    209,253.36x = 288,580.68 × 137,606.16
  4. Step 4: Simplify right side
    209,253.36x = 39,710,479,224.99
  5. Step 5: Solve for x
    x = 39,710,479,224.99/209,253.36
  6. Step 6: Final answer
    x = 189,772.24

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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.