Home / 134,603.10-185,730.57-78,003.54

Finding the Fourth Proportional to 134,603.10, 185,730.57 and 78,003.54

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Solution

The fourth proportional to 134,603.10, 185,730.57 and 78,003.54 is: 107,632.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,603.10 : 185,730.57 = 78,003.54 : x
  2. Step 2: Convert to fraction form
    134,603.10/185,730.57 = 78,003.54/x
  3. Step 3: Cross multiply
    134,603.10x = 185,730.57 × 78,003.54
  4. Step 4: Simplify right side
    134,603.10x = 14,487,641,946.22
  5. Step 5: Solve for x
    x = 14,487,641,946.22/134,603.10
  6. Step 6: Final answer
    x = 107,632.31

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.