Home / 137,574.04-189,782.30-89,855.32

Finding the Fourth Proportional to 137,574.04, 189,782.30 and 89,855.32

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Solution

The fourth proportional to 137,574.04, 189,782.30 and 89,855.32 is: 123,954.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,574.04 : 189,782.30 = 89,855.32 : x
  2. Step 2: Convert to fraction form
    137,574.04/189,782.30 = 89,855.32/x
  3. Step 3: Cross multiply
    137,574.04x = 189,782.30 × 89,855.32
  4. Step 4: Simplify right side
    137,574.04x = 17,052,949,296.84
  5. Step 5: Solve for x
    x = 17,052,949,296.84/137,574.04
  6. Step 6: Final answer
    x = 123,954.70

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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.