Home / 152,389.24-228,366.06-85,689.38

Finding the Fourth Proportional to 152,389.24, 228,366.06 and 85,689.38

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Solution

The fourth proportional to 152,389.24, 228,366.06 and 85,689.38 is: 128,411.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,389.24 : 228,366.06 = 85,689.38 : x
  2. Step 2: Convert to fraction form
    152,389.24/228,366.06 = 85,689.38/x
  3. Step 3: Cross multiply
    152,389.24x = 228,366.06 × 85,689.38
  4. Step 4: Simplify right side
    152,389.24x = 19,568,546,094.44
  5. Step 5: Solve for x
    x = 19,568,546,094.44/152,389.24
  6. Step 6: Final answer
    x = 128,411.60

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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.