Home / 406,130.14-609,196.43-139,887.19

Finding the Fourth Proportional to 406,130.14, 609,196.43 and 139,887.19

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Solution

The fourth proportional to 406,130.14, 609,196.43 and 139,887.19 is: 209,831.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,130.14 : 609,196.43 = 139,887.19 : x
  2. Step 2: Convert to fraction form
    406,130.14/609,196.43 = 139,887.19/x
  3. Step 3: Cross multiply
    406,130.14x = 609,196.43 × 139,887.19
  4. Step 4: Simplify right side
    406,130.14x = 85,218,776,750.73
  5. Step 5: Solve for x
    x = 85,218,776,750.73/406,130.14
  6. Step 6: Final answer
    x = 209,831.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.