Home / 154,826.56-213,706.08-101,119.72

Finding the Fourth Proportional to 154,826.56, 213,706.08 and 101,119.72

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Solution

The fourth proportional to 154,826.56, 213,706.08 and 101,119.72 is: 139,574.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,826.56 : 213,706.08 = 101,119.72 : x
  2. Step 2: Convert to fraction form
    154,826.56/213,706.08 = 101,119.72/x
  3. Step 3: Cross multiply
    154,826.56x = 213,706.08 × 101,119.72
  4. Step 4: Simplify right side
    154,826.56x = 21,609,898,971.90
  5. Step 5: Solve for x
    x = 21,609,898,971.90/154,826.56
  6. Step 6: Final answer
    x = 139,574.88

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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.