Home / 147,830.42-221,742.48-47,990.46

Finding the Fourth Proportional to 147,830.42, 221,742.48 and 47,990.46

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Solution

The fourth proportional to 147,830.42, 221,742.48 and 47,990.46 is: 71,984.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,830.42 : 221,742.48 = 47,990.46 : x
  2. Step 2: Convert to fraction form
    147,830.42/221,742.48 = 47,990.46/x
  3. Step 3: Cross multiply
    147,830.42x = 221,742.48 × 47,990.46
  4. Step 4: Simplify right side
    147,830.42x = 10,641,523,616.74
  5. Step 5: Solve for x
    x = 10,641,523,616.74/147,830.42
  6. Step 6: Final answer
    x = 71,984.67

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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.