Home / 112,550.36-155,167.51-72,194.07

Finding the Fourth Proportional to 112,550.36, 155,167.51 and 72,194.07

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Solution

The fourth proportional to 112,550.36, 155,167.51 and 72,194.07 is: 99,530.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,550.36 : 155,167.51 = 72,194.07 : x
  2. Step 2: Convert to fraction form
    112,550.36/155,167.51 = 72,194.07/x
  3. Step 3: Cross multiply
    112,550.36x = 155,167.51 × 72,194.07
  4. Step 4: Simplify right side
    112,550.36x = 11,202,173,898.18
  5. Step 5: Solve for x
    x = 11,202,173,898.18/112,550.36
  6. Step 6: Final answer
    x = 99,530.32

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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.