Home / 111,030.08-153,219.84-66,309.44

Finding the Fourth Proportional to 111,030.08, 153,219.84 and 66,309.44

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Solution

The fourth proportional to 111,030.08, 153,219.84 and 66,309.44 is: 91,506.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,030.08 : 153,219.84 = 66,309.44 : x
  2. Step 2: Convert to fraction form
    111,030.08/153,219.84 = 66,309.44/x
  3. Step 3: Cross multiply
    111,030.08x = 153,219.84 × 66,309.44
  4. Step 4: Simplify right side
    111,030.08x = 10,159,921,787.29
  5. Step 5: Solve for x
    x = 10,159,921,787.29/111,030.08
  6. Step 6: Final answer
    x = 91,506.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.