Home / 145,904.36-201,347.70-78,836.36

Finding the Fourth Proportional to 145,904.36, 201,347.70 and 78,836.36

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Solution

The fourth proportional to 145,904.36, 201,347.70 and 78,836.36 is: 108,794.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,904.36 : 201,347.70 = 78,836.36 : x
  2. Step 2: Convert to fraction form
    145,904.36/201,347.70 = 78,836.36/x
  3. Step 3: Cross multiply
    145,904.36x = 201,347.70 × 78,836.36
  4. Step 4: Simplify right side
    145,904.36x = 15,873,519,762.37
  5. Step 5: Solve for x
    x = 15,873,519,762.37/145,904.36
  6. Step 6: Final answer
    x = 108,794.01

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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.