Home / 207,120.07-285,907.13-130,623.94

Finding the Fourth Proportional to 207,120.07, 285,907.13 and 130,623.94

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Solution

The fourth proportional to 207,120.07, 285,907.13 and 130,623.94 is: 180,312.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,120.07 : 285,907.13 = 130,623.94 : x
  2. Step 2: Convert to fraction form
    207,120.07/285,907.13 = 130,623.94/x
  3. Step 3: Cross multiply
    207,120.07x = 285,907.13 × 130,623.94
  4. Step 4: Simplify right side
    207,120.07x = 37,346,315,794.69
  5. Step 5: Solve for x
    x = 37,346,315,794.69/207,120.07
  6. Step 6: Final answer
    x = 180,312.39

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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.