Home / 98,668.74-136,071.98-64,664.84

Finding the Fourth Proportional to 98,668.74, 136,071.98 and 64,664.84

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Solution

The fourth proportional to 98,668.74, 136,071.98 and 64,664.84 is: 89,177.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,668.74 : 136,071.98 = 64,664.84 : x
  2. Step 2: Convert to fraction form
    98,668.74/136,071.98 = 64,664.84/x
  3. Step 3: Cross multiply
    98,668.74x = 136,071.98 × 64,664.84
  4. Step 4: Simplify right side
    98,668.74x = 8,799,072,815.18
  5. Step 5: Solve for x
    x = 8,799,072,815.18/98,668.74
  6. Step 6: Final answer
    x = 89,177.92

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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.