Home / 145,538.56-217,902.94-74,307.36

Finding the Fourth Proportional to 145,538.56, 217,902.94 and 74,307.36

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Solution

The fourth proportional to 145,538.56, 217,902.94 and 74,307.36 is: 111,254.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,538.56 : 217,902.94 = 74,307.36 : x
  2. Step 2: Convert to fraction form
    145,538.56/217,902.94 = 74,307.36/x
  3. Step 3: Cross multiply
    145,538.56x = 217,902.94 × 74,307.36
  4. Step 4: Simplify right side
    145,538.56x = 16,191,792,207.64
  5. Step 5: Solve for x
    x = 16,191,792,207.64/145,538.56
  6. Step 6: Final answer
    x = 111,254.31

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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.