Home / 134,666.40-201,999.60-78,569.85

Finding the Fourth Proportional to 134,666.40, 201,999.60 and 78,569.85

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Solution

The fourth proportional to 134,666.40, 201,999.60 and 78,569.85 is: 117,854.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,666.40 : 201,999.60 = 78,569.85 : x
  2. Step 2: Convert to fraction form
    134,666.40/201,999.60 = 78,569.85/x
  3. Step 3: Cross multiply
    134,666.40x = 201,999.60 × 78,569.85
  4. Step 4: Simplify right side
    134,666.40x = 15,871,078,272.06
  5. Step 5: Solve for x
    x = 15,871,078,272.06/134,666.40
  6. Step 6: Final answer
    x = 117,854.78

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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.