Home / 102,607.21-154,005.42-52,041.72

Finding the Fourth Proportional to 102,607.21, 154,005.42 and 52,041.72

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Solution

The fourth proportional to 102,607.21, 154,005.42 and 52,041.72 is: 78,110.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,607.21 : 154,005.42 = 52,041.72 : x
  2. Step 2: Convert to fraction form
    102,607.21/154,005.42 = 52,041.72/x
  3. Step 3: Cross multiply
    102,607.21x = 154,005.42 × 52,041.72
  4. Step 4: Simplify right side
    102,607.21x = 8,014,706,848.54
  5. Step 5: Solve for x
    x = 8,014,706,848.54/102,607.21
  6. Step 6: Final answer
    x = 78,110.57

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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.