Home / 133,140.42-183,649.41-101,239.38

Finding the Fourth Proportional to 133,140.42, 183,649.41 and 101,239.38

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Solution

The fourth proportional to 133,140.42, 183,649.41 and 101,239.38 is: 139,646.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,140.42 : 183,649.41 = 101,239.38 : x
  2. Step 2: Convert to fraction form
    133,140.42/183,649.41 = 101,239.38/x
  3. Step 3: Cross multiply
    133,140.42x = 183,649.41 × 101,239.38
  4. Step 4: Simplify right side
    133,140.42x = 18,592,552,405.77
  5. Step 5: Solve for x
    x = 18,592,552,405.77/133,140.42
  6. Step 6: Final answer
    x = 139,646.19

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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.