Home / 145,428.34-218,142.57-45,596.31

Finding the Fourth Proportional to 145,428.34, 218,142.57 and 45,596.31

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Solution

The fourth proportional to 145,428.34, 218,142.57 and 45,596.31 is: 68,394.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,428.34 : 218,142.57 = 45,596.31 : x
  2. Step 2: Convert to fraction form
    145,428.34/218,142.57 = 45,596.31/x
  3. Step 3: Cross multiply
    145,428.34x = 218,142.57 × 45,596.31
  4. Step 4: Simplify right side
    145,428.34x = 9,946,496,245.92
  5. Step 5: Solve for x
    x = 9,946,496,245.92/145,428.34
  6. Step 6: Final answer
    x = 68,394.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.