Home / 128,337.03-192,533.01-38,386.80

Finding the Fourth Proportional to 128,337.03, 192,533.01 and 38,386.80

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Solution

The fourth proportional to 128,337.03, 192,533.01 and 38,386.80 is: 57,588.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,337.03 : 192,533.01 = 38,386.80 : x
  2. Step 2: Convert to fraction form
    128,337.03/192,533.01 = 38,386.80/x
  3. Step 3: Cross multiply
    128,337.03x = 192,533.01 × 38,386.80
  4. Step 4: Simplify right side
    128,337.03x = 7,390,726,148.27
  5. Step 5: Solve for x
    x = 7,390,726,148.27/128,337.03
  6. Step 6: Final answer
    x = 57,588.42

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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.