Home / 143,461.33-198,118.65-118,217.86

Finding the Fourth Proportional to 143,461.33, 198,118.65 and 118,217.86

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Solution

The fourth proportional to 143,461.33, 198,118.65 and 118,217.86 is: 163,257.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,461.33 : 198,118.65 = 118,217.86 : x
  2. Step 2: Convert to fraction form
    143,461.33/198,118.65 = 118,217.86/x
  3. Step 3: Cross multiply
    143,461.33x = 198,118.65 × 118,217.86
  4. Step 4: Simplify right side
    143,461.33x = 23,421,162,829.09
  5. Step 5: Solve for x
    x = 23,421,162,829.09/143,461.33
  6. Step 6: Final answer
    x = 163,257.67

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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.