Home / 186,984.21-280,210.85-144,127.67

Finding the Fourth Proportional to 186,984.21, 280,210.85 and 144,127.67

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Solution

The fourth proportional to 186,984.21, 280,210.85 and 144,127.67 is: 215,986.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,984.21 : 280,210.85 = 144,127.67 : x
  2. Step 2: Convert to fraction form
    186,984.21/280,210.85 = 144,127.67/x
  3. Step 3: Cross multiply
    186,984.21x = 280,210.85 × 144,127.67
  4. Step 4: Simplify right side
    186,984.21x = 40,386,136,919.22
  5. Step 5: Solve for x
    x = 40,386,136,919.22/186,984.21
  6. Step 6: Final answer
    x = 215,986.88

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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.