Home / 143,066.04-197,424.09-78,533.70

Finding the Fourth Proportional to 143,066.04, 197,424.09 and 78,533.70

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Solution

The fourth proportional to 143,066.04, 197,424.09 and 78,533.70 is: 108,372.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,066.04 : 197,424.09 = 78,533.70 : x
  2. Step 2: Convert to fraction form
    143,066.04/197,424.09 = 78,533.70/x
  3. Step 3: Cross multiply
    143,066.04x = 197,424.09 × 78,533.70
  4. Step 4: Simplify right side
    143,066.04x = 15,504,444,256.83
  5. Step 5: Solve for x
    x = 15,504,444,256.83/143,066.04
  6. Step 6: Final answer
    x = 108,372.64

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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.