Home / 120,541.80-180,681.34-102,958.28

Finding the Fourth Proportional to 120,541.80, 180,681.34 and 102,958.28

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Solution

The fourth proportional to 120,541.80, 180,681.34 and 102,958.28 is: 154,325.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,541.80 : 180,681.34 = 102,958.28 : x
  2. Step 2: Convert to fraction form
    120,541.80/180,681.34 = 102,958.28/x
  3. Step 3: Cross multiply
    120,541.80x = 180,681.34 × 102,958.28
  4. Step 4: Simplify right side
    120,541.80x = 18,602,639,994.50
  5. Step 5: Solve for x
    x = 18,602,639,994.50/120,541.80
  6. Step 6: Final answer
    x = 154,325.22

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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.