Home / 103,845.81-143,307.03-56,099.01

Finding the Fourth Proportional to 103,845.81, 143,307.03 and 56,099.01

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Solution

The fourth proportional to 103,845.81, 143,307.03 and 56,099.01 is: 77,416.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,845.81 : 143,307.03 = 56,099.01 : x
  2. Step 2: Convert to fraction form
    103,845.81/143,307.03 = 56,099.01/x
  3. Step 3: Cross multiply
    103,845.81x = 143,307.03 × 56,099.01
  4. Step 4: Simplify right side
    103,845.81x = 8,039,382,509.04
  5. Step 5: Solve for x
    x = 8,039,382,509.04/103,845.81
  6. Step 6: Final answer
    x = 77,416.53

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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.