Home / 122,439.12-183,641.40-39,322.32

Finding the Fourth Proportional to 122,439.12, 183,641.40 and 39,322.32

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Solution

The fourth proportional to 122,439.12, 183,641.40 and 39,322.32 is: 58,977.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,439.12 : 183,641.40 = 39,322.32 : x
  2. Step 2: Convert to fraction form
    122,439.12/183,641.40 = 39,322.32/x
  3. Step 3: Cross multiply
    122,439.12x = 183,641.40 × 39,322.32
  4. Step 4: Simplify right side
    122,439.12x = 7,221,205,896.05
  5. Step 5: Solve for x
    x = 7,221,205,896.05/122,439.12
  6. Step 6: Final answer
    x = 58,977.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.