Home / 143,697,136.56-198,302,128.02-77,617,634.52

Finding the Fourth Proportional to 143,697,136.56, 198,302,128.02 and 77,617,634.52

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Solution

The fourth proportional to 143,697,136.56, 198,302,128.02 and 77,617,634.52 is: 107,112,378.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,697,136.56 : 198,302,128.02 = 77,617,634.52 : x
  2. Step 2: Convert to fraction form
    143,697,136.56/198,302,128.02 = 77,617,634.52/x
  3. Step 3: Cross multiply
    143,697,136.56x = 198,302,128.02 × 77,617,634.52
  4. Step 4: Simplify right side
    143,697,136.56x = 15,391,742,097,194,612
  5. Step 5: Solve for x
    x = 15,391,742,097,194,612/143,697,136.56
  6. Step 6: Final answer
    x = 107,112,378.62

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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.