Home / 152,130.60-228,129.35-72,191.43

Finding the Fourth Proportional to 152,130.60, 228,129.35 and 72,191.43

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Solution

The fourth proportional to 152,130.60, 228,129.35 and 72,191.43 is: 108,255.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,130.60 : 228,129.35 = 72,191.43 : x
  2. Step 2: Convert to fraction form
    152,130.60/228,129.35 = 72,191.43/x
  3. Step 3: Cross multiply
    152,130.60x = 228,129.35 × 72,191.43
  4. Step 4: Simplify right side
    152,130.60x = 16,468,983,640.51
  5. Step 5: Solve for x
    x = 16,468,983,640.51/152,130.60
  6. Step 6: Final answer
    x = 108,255.56

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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.