Home / 158,150.04-218,249.76-86,536.32

Finding the Fourth Proportional to 158,150.04, 218,249.76 and 86,536.32

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Solution

The fourth proportional to 158,150.04, 218,249.76 and 86,536.32 is: 119,421.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,150.04 : 218,249.76 = 86,536.32 : x
  2. Step 2: Convert to fraction form
    158,150.04/218,249.76 = 86,536.32/x
  3. Step 3: Cross multiply
    158,150.04x = 218,249.76 × 86,536.32
  4. Step 4: Simplify right side
    158,150.04x = 18,886,531,071.28
  5. Step 5: Solve for x
    x = 18,886,531,071.28/158,150.04
  6. Step 6: Final answer
    x = 119,421.60

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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.