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Finding the Fourth Proportional to 134,343.90, 185,268.72 and 83,364.90

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Solution

The fourth proportional to 134,343.90, 185,268.72 and 83,364.90 is: 114,965.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,343.90 : 185,268.72 = 83,364.90 : x
  2. Step 2: Convert to fraction form
    134,343.90/185,268.72 = 83,364.90/x
  3. Step 3: Cross multiply
    134,343.90x = 185,268.72 × 83,364.90
  4. Step 4: Simplify right side
    134,343.90x = 15,444,908,315.93
  5. Step 5: Solve for x
    x = 15,444,908,315.93/134,343.90
  6. Step 6: Final answer
    x = 114,965.46

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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.