Home / 145,111.60-217,375.80-97,872.40

Finding the Fourth Proportional to 145,111.60, 217,375.80 and 97,872.40

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Solution

The fourth proportional to 145,111.60, 217,375.80 and 97,872.40 is: 146,611.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,111.60 : 217,375.80 = 97,872.40 : x
  2. Step 2: Convert to fraction form
    145,111.60/217,375.80 = 97,872.40/x
  3. Step 3: Cross multiply
    145,111.60x = 217,375.80 × 97,872.40
  4. Step 4: Simplify right side
    145,111.60x = 21,275,091,247.92
  5. Step 5: Solve for x
    x = 21,275,091,247.92/145,111.60
  6. Step 6: Final answer
    x = 146,611.93

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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.