Home / 142,626.12-196,810.41-85,254.04

Finding the Fourth Proportional to 142,626.12, 196,810.41 and 85,254.04

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Solution

The fourth proportional to 142,626.12, 196,810.41 and 85,254.04 is: 117,642.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,626.12 : 196,810.41 = 85,254.04 : x
  2. Step 2: Convert to fraction form
    142,626.12/196,810.41 = 85,254.04/x
  3. Step 3: Cross multiply
    142,626.12x = 196,810.41 × 85,254.04
  4. Step 4: Simplify right side
    142,626.12x = 16,778,883,206.25
  5. Step 5: Solve for x
    x = 16,778,883,206.25/142,626.12
  6. Step 6: Final answer
    x = 117,642.43

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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.