Home / 102,072.63-153,140.08-52,187.77

Finding the Fourth Proportional to 102,072.63, 153,140.08 and 52,187.77

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Solution

The fourth proportional to 102,072.63, 153,140.08 and 52,187.77 is: 78,297.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,072.63 : 153,140.08 = 52,187.77 : x
  2. Step 2: Convert to fraction form
    102,072.63/153,140.08 = 52,187.77/x
  3. Step 3: Cross multiply
    102,072.63x = 153,140.08 × 52,187.77
  4. Step 4: Simplify right side
    102,072.63x = 7,992,039,272.82
  5. Step 5: Solve for x
    x = 7,992,039,272.82/102,072.63
  6. Step 6: Final answer
    x = 78,297.57

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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.