Home / 103,880.21-143,322.82-63,551.93

Finding the Fourth Proportional to 103,880.21, 143,322.82 and 63,551.93

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Solution

The fourth proportional to 103,880.21, 143,322.82 and 63,551.93 is: 87,682.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,880.21 : 143,322.82 = 63,551.93 : x
  2. Step 2: Convert to fraction form
    103,880.21/143,322.82 = 63,551.93/x
  3. Step 3: Cross multiply
    103,880.21x = 143,322.82 × 63,551.93
  4. Step 4: Simplify right side
    103,880.21x = 9,108,440,948.55
  5. Step 5: Solve for x
    x = 9,108,440,948.55/103,880.21
  6. Step 6: Final answer
    x = 87,682.16

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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.