Home / 152,518.30-228,886.80-85,887.70

Finding the Fourth Proportional to 152,518.30, 228,886.80 and 85,887.70

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Solution

The fourth proportional to 152,518.30, 228,886.80 and 85,887.70 is: 128,893.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,518.30 : 228,886.80 = 85,887.70 : x
  2. Step 2: Convert to fraction form
    152,518.30/228,886.80 = 85,887.70/x
  3. Step 3: Cross multiply
    152,518.30x = 228,886.80 × 85,887.70
  4. Step 4: Simplify right side
    152,518.30x = 19,658,560,812.36
  5. Step 5: Solve for x
    x = 19,658,560,812.36/152,518.30
  6. Step 6: Final answer
    x = 128,893.13

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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.