Home / 201,721.04-278,392.20-111,094.64

Finding the Fourth Proportional to 201,721.04, 278,392.20 and 111,094.64

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Solution

The fourth proportional to 201,721.04, 278,392.20 and 111,094.64 is: 153,320.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,721.04 : 278,392.20 = 111,094.64 : x
  2. Step 2: Convert to fraction form
    201,721.04/278,392.20 = 111,094.64/x
  3. Step 3: Cross multiply
    201,721.04x = 278,392.20 × 111,094.64
  4. Step 4: Simplify right side
    201,721.04x = 30,927,881,237.81
  5. Step 5: Solve for x
    x = 30,927,881,237.81/201,721.04
  6. Step 6: Final answer
    x = 153,320.06

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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.