Home / 209,044.90-288,601.65-137,632.50

Finding the Fourth Proportional to 209,044.90, 288,601.65 and 137,632.50

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Solution

The fourth proportional to 209,044.90, 288,601.65 and 137,632.50 is: 190,011.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,044.90 : 288,601.65 = 137,632.50 : x
  2. Step 2: Convert to fraction form
    209,044.90/288,601.65 = 137,632.50/x
  3. Step 3: Cross multiply
    209,044.90x = 288,601.65 × 137,632.50
  4. Step 4: Simplify right side
    209,044.90x = 39,720,966,593.63
  5. Step 5: Solve for x
    x = 39,720,966,593.63/209,044.90
  6. Step 6: Final answer
    x = 190,011.65

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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.