Home / 112,698.63-155,536.53-71,864.26

Finding the Fourth Proportional to 112,698.63, 155,536.53 and 71,864.26

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Solution

The fourth proportional to 112,698.63, 155,536.53 and 71,864.26 is: 99,180.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,698.63 : 155,536.53 = 71,864.26 : x
  2. Step 2: Convert to fraction form
    112,698.63/155,536.53 = 71,864.26/x
  3. Step 3: Cross multiply
    112,698.63x = 155,536.53 × 71,864.26
  4. Step 4: Simplify right side
    112,698.63x = 11,177,516,973.09
  5. Step 5: Solve for x
    x = 11,177,516,973.09/112,698.63
  6. Step 6: Final answer
    x = 99,180.59

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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.