Home / 143,147.50-197,549.64-79,485.25

Finding the Fourth Proportional to 143,147.50, 197,549.64 and 79,485.25

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Solution

The fourth proportional to 143,147.50, 197,549.64 and 79,485.25 is: 109,693.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,147.50 : 197,549.64 = 79,485.25 : x
  2. Step 2: Convert to fraction form
    143,147.50/197,549.64 = 79,485.25/x
  3. Step 3: Cross multiply
    143,147.50x = 197,549.64 × 79,485.25
  4. Step 4: Simplify right side
    143,147.50x = 15,702,282,522.81
  5. Step 5: Solve for x
    x = 15,702,282,522.81/143,147.50
  6. Step 6: Final answer
    x = 109,693.03

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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.