Home / 201,701.08-278,345.22-111,055.21

Finding the Fourth Proportional to 201,701.08, 278,345.22 and 111,055.21

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Solution

The fourth proportional to 201,701.08, 278,345.22 and 111,055.21 is: 153,254.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,701.08 : 278,345.22 = 111,055.21 : x
  2. Step 2: Convert to fraction form
    201,701.08/278,345.22 = 111,055.21/x
  3. Step 3: Cross multiply
    201,701.08x = 278,345.22 × 111,055.21
  4. Step 4: Simplify right side
    201,701.08x = 30,911,686,859.60
  5. Step 5: Solve for x
    x = 30,911,686,859.60/201,701.08
  6. Step 6: Final answer
    x = 153,254.94

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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.