Home / 158,004.22-218,051.04-86,386.18

Finding the Fourth Proportional to 158,004.22, 218,051.04 and 86,386.18

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Solution

The fourth proportional to 158,004.22, 218,051.04 and 86,386.18 is: 119,215.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,004.22 : 218,051.04 = 86,386.18 : x
  2. Step 2: Convert to fraction form
    158,004.22/218,051.04 = 86,386.18/x
  3. Step 3: Cross multiply
    158,004.22x = 218,051.04 × 86,386.18
  4. Step 4: Simplify right side
    158,004.22x = 18,836,596,390.63
  5. Step 5: Solve for x
    x = 18,836,596,390.63/158,004.22
  6. Step 6: Final answer
    x = 119,215.78

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1.5x scale

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.