Home / 202,420.07-279,348-125,984.42

Finding the Fourth Proportional to 202,420.07, 279,348 and 125,984.42

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Solution

The fourth proportional to 202,420.07, 279,348 and 125,984.42 is: 173,863.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,420.07 : 279,348 = 125,984.42 : x
  2. Step 2: Convert to fraction form
    202,420.07/279,348 = 125,984.42/x
  3. Step 3: Cross multiply
    202,420.07x = 279,348 × 125,984.42
  4. Step 4: Simplify right side
    202,420.07x = 35,193,495,758.16
  5. Step 5: Solve for x
    x = 35,193,495,758.16/202,420.07
  6. Step 6: Final answer
    x = 173,863.67

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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.