Home / 105,461.46-158,159.60-30,587.11

Finding the Fourth Proportional to 105,461.46, 158,159.60 and 30,587.11

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Solution

The fourth proportional to 105,461.46, 158,159.60 and 30,587.11 is: 45,871.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,461.46 : 158,159.60 = 30,587.11 : x
  2. Step 2: Convert to fraction form
    105,461.46/158,159.60 = 30,587.11/x
  3. Step 3: Cross multiply
    105,461.46x = 158,159.60 × 30,587.11
  4. Step 4: Simplify right side
    105,461.46x = 4,837,645,242.22
  5. Step 5: Solve for x
    x = 4,837,645,242.22/105,461.46
  6. Step 6: Final answer
    x = 45,871.21

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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.