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Finding the Fourth Proportional to 147,368.16, 203,368.32 and 80,300.16

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Solution

The fourth proportional to 147,368.16, 203,368.32 and 80,300.16 is: 110,814.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,368.16 : 203,368.32 = 80,300.16 : x
  2. Step 2: Convert to fraction form
    147,368.16/203,368.32 = 80,300.16/x
  3. Step 3: Cross multiply
    147,368.16x = 203,368.32 × 80,300.16
  4. Step 4: Simplify right side
    147,368.16x = 16,330,508,634.93
  5. Step 5: Solve for x
    x = 16,330,508,634.93/147,368.16
  6. Step 6: Final answer
    x = 110,814.36

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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.