Home / 151,121.04-208,540.44-83,133.72

Finding the Fourth Proportional to 151,121.04, 208,540.44 and 83,133.72

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Solution

The fourth proportional to 151,121.04, 208,540.44 and 83,133.72 is: 114,720.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,121.04 : 208,540.44 = 83,133.72 : x
  2. Step 2: Convert to fraction form
    151,121.04/208,540.44 = 83,133.72/x
  3. Step 3: Cross multiply
    151,121.04x = 208,540.44 × 83,133.72
  4. Step 4: Simplify right side
    151,121.04x = 17,336,742,547.64
  5. Step 5: Solve for x
    x = 17,336,742,547.64/151,121.04
  6. Step 6: Final answer
    x = 114,720.91

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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.