Home / 142,877.93-197,197.23-82,440.18

Finding the Fourth Proportional to 142,877.93, 197,197.23 and 82,440.18

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Solution

The fourth proportional to 142,877.93, 197,197.23 and 82,440.18 is: 113,782.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,877.93 : 197,197.23 = 82,440.18 : x
  2. Step 2: Convert to fraction form
    142,877.93/197,197.23 = 82,440.18/x
  3. Step 3: Cross multiply
    142,877.93x = 197,197.23 × 82,440.18
  4. Step 4: Simplify right side
    142,877.93x = 16,256,975,445.85
  5. Step 5: Solve for x
    x = 16,256,975,445.85/142,877.93
  6. Step 6: Final answer
    x = 113,782.28

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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.