Home / 102,239.67-153,341.01-31,145.30

Finding the Fourth Proportional to 102,239.67, 153,341.01 and 31,145.30

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Solution

The fourth proportional to 102,239.67, 153,341.01 and 31,145.30 is: 46,712.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,239.67 : 153,341.01 = 31,145.30 : x
  2. Step 2: Convert to fraction form
    102,239.67/153,341.01 = 31,145.30/x
  3. Step 3: Cross multiply
    102,239.67x = 153,341.01 × 31,145.30
  4. Step 4: Simplify right side
    102,239.67x = 4,775,851,758.75
  5. Step 5: Solve for x
    x = 4,775,851,758.75/102,239.67
  6. Step 6: Final answer
    x = 46,712.32

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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.