Home / 112,334.32-155,021.64-61,347.46

Finding the Fourth Proportional to 112,334.32, 155,021.64 and 61,347.46

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Solution

The fourth proportional to 112,334.32, 155,021.64 and 61,347.46 is: 84,659.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,334.32 : 155,021.64 = 61,347.46 : x
  2. Step 2: Convert to fraction form
    112,334.32/155,021.64 = 61,347.46/x
  3. Step 3: Cross multiply
    112,334.32x = 155,021.64 × 61,347.46
  4. Step 4: Simplify right side
    112,334.32x = 9,510,183,859.03
  5. Step 5: Solve for x
    x = 9,510,183,859.03/112,334.32
  6. Step 6: Final answer
    x = 84,659.65

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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.