Home / 158,106.05-218,187.93-86,484.50

Finding the Fourth Proportional to 158,106.05, 218,187.93 and 86,484.50

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Solution

The fourth proportional to 158,106.05, 218,187.93 and 86,484.50 is: 119,349.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,106.05 : 218,187.93 = 86,484.50 : x
  2. Step 2: Convert to fraction form
    158,106.05/218,187.93 = 86,484.50/x
  3. Step 3: Cross multiply
    158,106.05x = 218,187.93 × 86,484.50
  4. Step 4: Simplify right side
    158,106.05x = 18,869,874,032.09
  5. Step 5: Solve for x
    x = 18,869,874,032.09/158,106.05
  6. Step 6: Final answer
    x = 119,349.47

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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.