Home / 152,021.70-228,032.55-128,402.10

Finding the Fourth Proportional to 152,021.70, 228,032.55 and 128,402.10

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Solution

The fourth proportional to 152,021.70, 228,032.55 and 128,402.10 is: 192,603.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,021.70 : 228,032.55 = 128,402.10 : x
  2. Step 2: Convert to fraction form
    152,021.70/228,032.55 = 128,402.10/x
  3. Step 3: Cross multiply
    152,021.70x = 228,032.55 × 128,402.10
  4. Step 4: Simplify right side
    152,021.70x = 29,279,858,288.36
  5. Step 5: Solve for x
    x = 29,279,858,288.36/152,021.70
  6. Step 6: Final answer
    x = 192,603.15

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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.