Home / 142,202.72-196,280.25-84,113.26

Finding the Fourth Proportional to 142,202.72, 196,280.25 and 84,113.26

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Solution

The fourth proportional to 142,202.72, 196,280.25 and 84,113.26 is: 116,100.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,202.72 : 196,280.25 = 84,113.26 : x
  2. Step 2: Convert to fraction form
    142,202.72/196,280.25 = 84,113.26/x
  3. Step 3: Cross multiply
    142,202.72x = 196,280.25 × 84,113.26
  4. Step 4: Simplify right side
    142,202.72x = 16,509,771,701.12
  5. Step 5: Solve for x
    x = 16,509,771,701.12/142,202.72
  6. Step 6: Final answer
    x = 116,100.26

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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.