Home / 109,681.41-164,587.65-100,758.45

Finding the Fourth Proportional to 109,681.41, 164,587.65 and 100,758.45

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Solution

The fourth proportional to 109,681.41, 164,587.65 and 100,758.45 is: 151,197.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,681.41 : 164,587.65 = 100,758.45 : x
  2. Step 2: Convert to fraction form
    109,681.41/164,587.65 = 100,758.45/x
  3. Step 3: Cross multiply
    109,681.41x = 164,587.65 × 100,758.45
  4. Step 4: Simplify right side
    109,681.41x = 16,583,596,503.14
  5. Step 5: Solve for x
    x = 16,583,596,503.14/109,681.41
  6. Step 6: Final answer
    x = 151,197.88

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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.