Home / 102,810.10-154,445.55-98,611.70

Finding the Fourth Proportional to 102,810.10, 154,445.55 and 98,611.70

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Solution

The fourth proportional to 102,810.10, 154,445.55 and 98,611.70 is: 148,138.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,810.10 : 154,445.55 = 98,611.70 : x
  2. Step 2: Convert to fraction form
    102,810.10/154,445.55 = 98,611.70/x
  3. Step 3: Cross multiply
    102,810.10x = 154,445.55 × 98,611.70
  4. Step 4: Simplify right side
    102,810.10x = 15,230,138,242.94
  5. Step 5: Solve for x
    x = 15,230,138,242.94/102,810.10
  6. Step 6: Final answer
    x = 148,138.54

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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.