Home / 143,967.20-198,567.60-105,714.74

Finding the Fourth Proportional to 143,967.20, 198,567.60 and 105,714.74

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Solution

The fourth proportional to 143,967.20, 198,567.60 and 105,714.74 is: 145,807.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,967.20 : 198,567.60 = 105,714.74 : x
  2. Step 2: Convert to fraction form
    143,967.20/198,567.60 = 105,714.74/x
  3. Step 3: Cross multiply
    143,967.20x = 198,567.60 × 105,714.74
  4. Step 4: Simplify right side
    143,967.20x = 20,991,521,213.59
  5. Step 5: Solve for x
    x = 20,991,521,213.59/143,967.20
  6. Step 6: Final answer
    x = 145,807.67

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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.