Home / 105,582.03-158,004.88-86,384.80

Finding the Fourth Proportional to 105,582.03, 158,004.88 and 86,384.80

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Solution

The fourth proportional to 105,582.03, 158,004.88 and 86,384.80 is: 129,275.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,582.03 : 158,004.88 = 86,384.80 : x
  2. Step 2: Convert to fraction form
    105,582.03/158,004.88 = 86,384.80/x
  3. Step 3: Cross multiply
    105,582.03x = 158,004.88 × 86,384.80
  4. Step 4: Simplify right side
    105,582.03x = 13,649,219,346.85
  5. Step 5: Solve for x
    x = 13,649,219,346.85/105,582.03
  6. Step 6: Final answer
    x = 129,275.97

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.