Home / 158,128.06-218,086.81-112,791.55

Finding the Fourth Proportional to 158,128.06, 218,086.81 and 112,791.55

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Solution

The fourth proportional to 158,128.06, 218,086.81 and 112,791.55 is: 155,559.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,128.06 : 218,086.81 = 112,791.55 : x
  2. Step 2: Convert to fraction form
    158,128.06/218,086.81 = 112,791.55/x
  3. Step 3: Cross multiply
    158,128.06x = 218,086.81 × 112,791.55
  4. Step 4: Simplify right side
    158,128.06x = 24,598,349,334.46
  5. Step 5: Solve for x
    x = 24,598,349,334.46/158,128.06
  6. Step 6: Final answer
    x = 155,559.67

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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.