Home / 142,451.12-196,642.99-88,762.64

Finding the Fourth Proportional to 142,451.12, 196,642.99 and 88,762.64

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Solution

The fourth proportional to 142,451.12, 196,642.99 and 88,762.64 is: 122,530.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,451.12 : 196,642.99 = 88,762.64 : x
  2. Step 2: Convert to fraction form
    142,451.12/196,642.99 = 88,762.64/x
  3. Step 3: Cross multiply
    142,451.12x = 196,642.99 × 88,762.64
  4. Step 4: Simplify right side
    142,451.12x = 17,454,550,057.63
  5. Step 5: Solve for x
    x = 17,454,550,057.63/142,451.12
  6. Step 6: Final answer
    x = 122,530.10

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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.