Home / 100,848.95-139,166.38-55,518.19

Finding the Fourth Proportional to 100,848.95, 139,166.38 and 55,518.19

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Solution

The fourth proportional to 100,848.95, 139,166.38 and 55,518.19 is: 76,612.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,848.95 : 139,166.38 = 55,518.19 : x
  2. Step 2: Convert to fraction form
    100,848.95/139,166.38 = 55,518.19/x
  3. Step 3: Cross multiply
    100,848.95x = 139,166.38 × 55,518.19
  4. Step 4: Simplify right side
    100,848.95x = 7,726,265,932.37
  5. Step 5: Solve for x
    x = 7,726,265,932.37/100,848.95
  6. Step 6: Final answer
    x = 76,612.26

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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.