Home / 143,032.03-197,374.32-79,364.81

Finding the Fourth Proportional to 143,032.03, 197,374.32 and 79,364.81

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Solution

The fourth proportional to 143,032.03, 197,374.32 and 79,364.81 is: 109,517.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,032.03 : 197,374.32 = 79,364.81 : x
  2. Step 2: Convert to fraction form
    143,032.03/197,374.32 = 79,364.81/x
  3. Step 3: Cross multiply
    143,032.03x = 197,374.32 × 79,364.81
  4. Step 4: Simplify right side
    143,032.03x = 15,664,575,899.12
  5. Step 5: Solve for x
    x = 15,664,575,899.12/143,032.03
  6. Step 6: Final answer
    x = 109,517.96

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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.