Home / 152,133.98-228,131.73-81,038.57

Finding the Fourth Proportional to 152,133.98, 228,131.73 and 81,038.57

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Solution

The fourth proportional to 152,133.98, 228,131.73 and 81,038.57 is: 121,520.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,133.98 : 228,131.73 = 81,038.57 : x
  2. Step 2: Convert to fraction form
    152,133.98/228,131.73 = 81,038.57/x
  3. Step 3: Cross multiply
    152,133.98x = 228,131.73 × 81,038.57
  4. Step 4: Simplify right side
    152,133.98x = 18,487,468,030.17
  5. Step 5: Solve for x
    x = 18,487,468,030.17/152,133.98
  6. Step 6: Final answer
    x = 121,520.97

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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.