Home / 137,928.94-190,347.53-77,499.39

Finding the Fourth Proportional to 137,928.94, 190,347.53 and 77,499.39

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Solution

The fourth proportional to 137,928.94, 190,347.53 and 77,499.39 is: 106,952.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,928.94 : 190,347.53 = 77,499.39 : x
  2. Step 2: Convert to fraction form
    137,928.94/190,347.53 = 77,499.39/x
  3. Step 3: Cross multiply
    137,928.94x = 190,347.53 × 77,499.39
  4. Step 4: Simplify right side
    137,928.94x = 14,751,817,075.51
  5. Step 5: Solve for x
    x = 14,751,817,075.51/137,928.94
  6. Step 6: Final answer
    x = 106,952.30

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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.