Home / 152,128.07-228,189.53-45,512.28

Finding the Fourth Proportional to 152,128.07, 228,189.53 and 45,512.28

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Solution

The fourth proportional to 152,128.07, 228,189.53 and 45,512.28 is: 68,267.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,128.07 : 228,189.53 = 45,512.28 : x
  2. Step 2: Convert to fraction form
    152,128.07/228,189.53 = 45,512.28/x
  3. Step 3: Cross multiply
    152,128.07x = 228,189.53 × 45,512.28
  4. Step 4: Simplify right side
    152,128.07x = 10,385,425,768.21
  5. Step 5: Solve for x
    x = 10,385,425,768.21/152,128.07
  6. Step 6: Final answer
    x = 68,267.65

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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.