Home / 122,429.20-183,643.80-112,320.40

Finding the Fourth Proportional to 122,429.20, 183,643.80 and 112,320.40

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Solution

The fourth proportional to 122,429.20, 183,643.80 and 112,320.40 is: 168,480.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,429.20 : 183,643.80 = 112,320.40 : x
  2. Step 2: Convert to fraction form
    122,429.20/183,643.80 = 112,320.40/x
  3. Step 3: Cross multiply
    122,429.20x = 183,643.80 × 112,320.40
  4. Step 4: Simplify right side
    122,429.20x = 20,626,945,073.52
  5. Step 5: Solve for x
    x = 20,626,945,073.52/122,429.20
  6. Step 6: Final answer
    x = 168,480.60

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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.