Home / 101,228.04-139,695.75-55,907.18

Finding the Fourth Proportional to 101,228.04, 139,695.75 and 55,907.18

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Solution

The fourth proportional to 101,228.04, 139,695.75 and 55,907.18 is: 77,152.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,228.04 : 139,695.75 = 55,907.18 : x
  2. Step 2: Convert to fraction form
    101,228.04/139,695.75 = 55,907.18/x
  3. Step 3: Cross multiply
    101,228.04x = 139,695.75 × 55,907.18
  4. Step 4: Simplify right side
    101,228.04x = 7,809,995,265.87
  5. Step 5: Solve for x
    x = 7,809,995,265.87/101,228.04
  6. Step 6: Final answer
    x = 77,152.49

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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.