Home / 209,045.39-288,483.35-123,007.65

Finding the Fourth Proportional to 209,045.39, 288,483.35 and 123,007.65

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Solution

The fourth proportional to 209,045.39, 288,483.35 and 123,007.65 is: 169,750.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,045.39 : 288,483.35 = 123,007.65 : x
  2. Step 2: Convert to fraction form
    209,045.39/288,483.35 = 123,007.65/x
  3. Step 3: Cross multiply
    209,045.39x = 288,483.35 × 123,007.65
  4. Step 4: Simplify right side
    209,045.39x = 35,485,658,947.63
  5. Step 5: Solve for x
    x = 35,485,658,947.63/209,045.39
  6. Step 6: Final answer
    x = 169,750.98

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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.