Home / 98,174.19-147,261.30-31,621.05

Finding the Fourth Proportional to 98,174.19, 147,261.30 and 31,621.05

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Solution

The fourth proportional to 98,174.19, 147,261.30 and 31,621.05 is: 47,431.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,174.19 : 147,261.30 = 31,621.05 : x
  2. Step 2: Convert to fraction form
    98,174.19/147,261.30 = 31,621.05/x
  3. Step 3: Cross multiply
    98,174.19x = 147,261.30 × 31,621.05
  4. Step 4: Simplify right side
    98,174.19x = 4,656,556,930.37
  5. Step 5: Solve for x
    x = 4,656,556,930.37/98,174.19
  6. Step 6: Final answer
    x = 47,431.58

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1.5x scale

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.