Home / 154,772.19-213,631.25-101,065.59

Finding the Fourth Proportional to 154,772.19, 213,631.25 and 101,065.59

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Solution

The fourth proportional to 154,772.19, 213,631.25 and 101,065.59 is: 139,500.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,772.19 : 213,631.25 = 101,065.59 : x
  2. Step 2: Convert to fraction form
    154,772.19/213,631.25 = 101,065.59/x
  3. Step 3: Cross multiply
    154,772.19x = 213,631.25 × 101,065.59
  4. Step 4: Simplify right side
    154,772.19x = 21,590,767,818.36
  5. Step 5: Solve for x
    x = 21,590,767,818.36/154,772.19
  6. Step 6: Final answer
    x = 139,500.31

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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.