Home / 133,221.32-183,926.87-86,698.51

Finding the Fourth Proportional to 133,221.32, 183,926.87 and 86,698.51

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Solution

The fourth proportional to 133,221.32, 183,926.87 and 86,698.51 is: 119,696.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,221.32 : 183,926.87 = 86,698.51 : x
  2. Step 2: Convert to fraction form
    133,221.32/183,926.87 = 86,698.51/x
  3. Step 3: Cross multiply
    133,221.32x = 183,926.87 × 86,698.51
  4. Step 4: Simplify right side
    133,221.32x = 15,946,185,807.87
  5. Step 5: Solve for x
    x = 15,946,185,807.87/133,221.32
  6. Step 6: Final answer
    x = 119,696.95

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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.