Home / 202,132.04-302,907.40-139,023.42

Finding the Fourth Proportional to 202,132.04, 302,907.40 and 139,023.42

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Solution

The fourth proportional to 202,132.04, 302,907.40 and 139,023.42 is: 208,335.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,132.04 : 302,907.40 = 139,023.42 : x
  2. Step 2: Convert to fraction form
    202,132.04/302,907.40 = 139,023.42/x
  3. Step 3: Cross multiply
    202,132.04x = 302,907.40 × 139,023.42
  4. Step 4: Simplify right side
    202,132.04x = 42,111,221,207.85
  5. Step 5: Solve for x
    x = 42,111,221,207.85/202,132.04
  6. Step 6: Final answer
    x = 208,335.22

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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.