Home / 145,868.51-201,023.73-105,513.83

Finding the Fourth Proportional to 145,868.51, 201,023.73 and 105,513.83

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Solution

The fourth proportional to 145,868.51, 201,023.73 and 105,513.83 is: 145,410.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,868.51 : 201,023.73 = 105,513.83 : x
  2. Step 2: Convert to fraction form
    145,868.51/201,023.73 = 105,513.83/x
  3. Step 3: Cross multiply
    145,868.51x = 201,023.73 × 105,513.83
  4. Step 4: Simplify right side
    145,868.51x = 21,210,782,668.07
  5. Step 5: Solve for x
    x = 21,210,782,668.07/145,868.51
  6. Step 6: Final answer
    x = 145,410.30

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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.