Home / 102,664.37-153,994.72-52,715.11

Finding the Fourth Proportional to 102,664.37, 153,994.72 and 52,715.11

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Solution

The fourth proportional to 102,664.37, 153,994.72 and 52,715.11 is: 79,071.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,664.37 : 153,994.72 = 52,715.11 : x
  2. Step 2: Convert to fraction form
    102,664.37/153,994.72 = 52,715.11/x
  3. Step 3: Cross multiply
    102,664.37x = 153,994.72 × 52,715.11
  4. Step 4: Simplify right side
    102,664.37x = 8,117,847,570.67
  5. Step 5: Solve for x
    x = 8,117,847,570.67/102,664.37
  6. Step 6: Final answer
    x = 79,071.72

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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.