Home / 134,128.40-201,219.60-39,358.40

Finding the Fourth Proportional to 134,128.40, 201,219.60 and 39,358.40

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Solution

The fourth proportional to 134,128.40, 201,219.60 and 39,358.40 is: 59,045.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,128.40 : 201,219.60 = 39,358.40 : x
  2. Step 2: Convert to fraction form
    134,128.40/201,219.60 = 39,358.40/x
  3. Step 3: Cross multiply
    134,128.40x = 201,219.60 × 39,358.40
  4. Step 4: Simplify right side
    134,128.40x = 7,919,681,504.64
  5. Step 5: Solve for x
    x = 7,919,681,504.64/134,128.40
  6. Step 6: Final answer
    x = 59,045.52

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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.