Home / 196,018.76-270,493.43-115,430.72

Finding the Fourth Proportional to 196,018.76, 270,493.43 and 115,430.72

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Solution

The fourth proportional to 196,018.76, 270,493.43 and 115,430.72 is: 159,287.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,018.76 : 270,493.43 = 115,430.72 : x
  2. Step 2: Convert to fraction form
    196,018.76/270,493.43 = 115,430.72/x
  3. Step 3: Cross multiply
    196,018.76x = 270,493.43 × 115,430.72
  4. Step 4: Simplify right side
    196,018.76x = 31,223,249,450.55
  5. Step 5: Solve for x
    x = 31,223,249,450.55/196,018.76
  6. Step 6: Final answer
    x = 159,287.05

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1.5x scale

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.