Home / 142,723.40-196,558.80-139,623.94

Finding the Fourth Proportional to 142,723.40, 196,558.80 and 139,623.94

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Solution

The fourth proportional to 142,723.40, 196,558.80 and 139,623.94 is: 192,290.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,723.40 : 196,558.80 = 139,623.94 : x
  2. Step 2: Convert to fraction form
    142,723.40/196,558.80 = 139,623.94/x
  3. Step 3: Cross multiply
    142,723.40x = 196,558.80 × 139,623.94
  4. Step 4: Simplify right side
    142,723.40x = 27,444,314,097.67
  5. Step 5: Solve for x
    x = 27,444,314,097.67/142,723.40
  6. Step 6: Final answer
    x = 192,290.22

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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.