Home / 133,017.09-183,563.51-76,428.33

Finding the Fourth Proportional to 133,017.09, 183,563.51 and 76,428.33

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Solution

The fourth proportional to 133,017.09, 183,563.51 and 76,428.33 is: 105,471.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,017.09 : 183,563.51 = 76,428.33 : x
  2. Step 2: Convert to fraction form
    133,017.09/183,563.51 = 76,428.33/x
  3. Step 3: Cross multiply
    133,017.09x = 183,563.51 × 76,428.33
  4. Step 4: Simplify right side
    133,017.09x = 14,029,452,136.10
  5. Step 5: Solve for x
    x = 14,029,452,136.10/133,017.09
  6. Step 6: Final answer
    x = 105,471.05

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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.