Home / 145,235.46-200,420.93-80,703.03

Finding the Fourth Proportional to 145,235.46, 200,420.93 and 80,703.03

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Solution

The fourth proportional to 145,235.46, 200,420.93 and 80,703.03 is: 111,367.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,235.46 : 200,420.93 = 80,703.03 : x
  2. Step 2: Convert to fraction form
    145,235.46/200,420.93 = 80,703.03/x
  3. Step 3: Cross multiply
    145,235.46x = 200,420.93 × 80,703.03
  4. Step 4: Simplify right side
    145,235.46x = 16,174,577,279.75
  5. Step 5: Solve for x
    x = 16,174,577,279.75/145,235.46
  6. Step 6: Final answer
    x = 111,367.96

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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.