Home / 103,639.78-155,457.93-46,682.01

Finding the Fourth Proportional to 103,639.78, 155,457.93 and 46,682.01

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Solution

The fourth proportional to 103,639.78, 155,457.93 and 46,682.01 is: 70,022.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,639.78 : 155,457.93 = 46,682.01 : x
  2. Step 2: Convert to fraction form
    103,639.78/155,457.93 = 46,682.01/x
  3. Step 3: Cross multiply
    103,639.78x = 155,457.93 × 46,682.01
  4. Step 4: Simplify right side
    103,639.78x = 7,257,088,642.84
  5. Step 5: Solve for x
    x = 7,257,088,642.84/103,639.78
  6. Step 6: Final answer
    x = 70,022.23

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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.