Home / 152,219.24-228,261.36-81,128.63

Finding the Fourth Proportional to 152,219.24, 228,261.36 and 81,128.63

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Solution

The fourth proportional to 152,219.24, 228,261.36 and 81,128.63 is: 121,656.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,219.24 : 228,261.36 = 81,128.63 : x
  2. Step 2: Convert to fraction form
    152,219.24/228,261.36 = 81,128.63/x
  3. Step 3: Cross multiply
    152,219.24x = 228,261.36 × 81,128.63
  4. Step 4: Simplify right side
    152,219.24x = 18,518,531,418.74
  5. Step 5: Solve for x
    x = 18,518,531,418.74/152,219.24
  6. Step 6: Final answer
    x = 121,656.97

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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.