Home / 103,871.08-143,313.06-69,927.40

Finding the Fourth Proportional to 103,871.08, 143,313.06 and 69,927.40

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Solution

The fourth proportional to 103,871.08, 143,313.06 and 69,927.40 is: 96,480.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,871.08 : 143,313.06 = 69,927.40 : x
  2. Step 2: Convert to fraction form
    103,871.08/143,313.06 = 69,927.40/x
  3. Step 3: Cross multiply
    103,871.08x = 143,313.06 × 69,927.40
  4. Step 4: Simplify right side
    103,871.08x = 10,021,509,671.84
  5. Step 5: Solve for x
    x = 10,021,509,671.84/103,871.08
  6. Step 6: Final answer
    x = 96,480.27

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1.5x scale

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.