Home / 106,130.07-159,140.30-31,240.49

Finding the Fourth Proportional to 106,130.07, 159,140.30 and 31,240.49

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Solution

The fourth proportional to 106,130.07, 159,140.30 and 31,240.49 is: 46,844.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,130.07 : 159,140.30 = 31,240.49 : x
  2. Step 2: Convert to fraction form
    106,130.07/159,140.30 = 31,240.49/x
  3. Step 3: Cross multiply
    106,130.07x = 159,140.30 × 31,240.49
  4. Step 4: Simplify right side
    106,130.07x = 4,971,619,998.84
  5. Step 5: Solve for x
    x = 4,971,619,998.84/106,130.07
  6. Step 6: Final answer
    x = 46,844.59

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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.