Home / 98,668.76-136,175.36-64,705.82

Finding the Fourth Proportional to 98,668.76, 136,175.36 and 64,705.82

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Solution

The fourth proportional to 98,668.76, 136,175.36 and 64,705.82 is: 89,302.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,668.76 : 136,175.36 = 64,705.82 : x
  2. Step 2: Convert to fraction form
    98,668.76/136,175.36 = 64,705.82/x
  3. Step 3: Cross multiply
    98,668.76x = 136,175.36 × 64,705.82
  4. Step 4: Simplify right side
    98,668.76x = 8,811,338,332.60
  5. Step 5: Solve for x
    x = 8,811,338,332.60/98,668.76
  6. Step 6: Final answer
    x = 89,302.21

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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.