Home / 150,530.38-207,730.21-86,866.81

Finding the Fourth Proportional to 150,530.38, 207,730.21 and 86,866.81

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Solution

The fourth proportional to 150,530.38, 207,730.21 and 86,866.81 is: 119,875.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,530.38 : 207,730.21 = 86,866.81 : x
  2. Step 2: Convert to fraction form
    150,530.38/207,730.21 = 86,866.81/x
  3. Step 3: Cross multiply
    150,530.38x = 207,730.21 × 86,866.81
  4. Step 4: Simplify right side
    150,530.38x = 18,044,860,683.33
  5. Step 5: Solve for x
    x = 18,044,860,683.33/150,530.38
  6. Step 6: Final answer
    x = 119,875.21

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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.