Home / 101,010.06-139,394.85-55,689.72

Finding the Fourth Proportional to 101,010.06, 139,394.85 and 55,689.72

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Solution

The fourth proportional to 101,010.06, 139,394.85 and 55,689.72 is: 76,852.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,010.06 : 139,394.85 = 55,689.72 : x
  2. Step 2: Convert to fraction form
    101,010.06/139,394.85 = 55,689.72/x
  3. Step 3: Cross multiply
    101,010.06x = 139,394.85 × 55,689.72
  4. Step 4: Simplify right side
    101,010.06x = 7,762,860,165.94
  5. Step 5: Solve for x
    x = 7,762,860,165.94/101,010.06
  6. Step 6: Final answer
    x = 76,852.35

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1.5x scale

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.