Home / 103,864.01-143,450.56-69,813.38

Finding the Fourth Proportional to 103,864.01, 143,450.56 and 69,813.38

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Solution

The fourth proportional to 103,864.01, 143,450.56 and 69,813.38 is: 96,421.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,864.01 : 143,450.56 = 69,813.38 : x
  2. Step 2: Convert to fraction form
    103,864.01/143,450.56 = 69,813.38/x
  3. Step 3: Cross multiply
    103,864.01x = 143,450.56 × 69,813.38
  4. Step 4: Simplify right side
    103,864.01x = 10,014,767,739.24
  5. Step 5: Solve for x
    x = 10,014,767,739.24/103,864.01
  6. Step 6: Final answer
    x = 96,421.93

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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.