Home / 142,646.46-196,852.11-78,984.24

Finding the Fourth Proportional to 142,646.46, 196,852.11 and 78,984.24

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Solution

The fourth proportional to 142,646.46, 196,852.11 and 78,984.24 is: 108,998.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,646.46 : 196,852.11 = 78,984.24 : x
  2. Step 2: Convert to fraction form
    142,646.46/196,852.11 = 78,984.24/x
  3. Step 3: Cross multiply
    142,646.46x = 196,852.11 × 78,984.24
  4. Step 4: Simplify right side
    142,646.46x = 15,548,214,300.75
  5. Step 5: Solve for x
    x = 15,548,214,300.75/142,646.46
  6. Step 6: Final answer
    x = 108,998.25

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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.