Home / 144,485.64-199,440.18-99,313.20

Finding the Fourth Proportional to 144,485.64, 199,440.18 and 99,313.20

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Solution

The fourth proportional to 144,485.64, 199,440.18 and 99,313.20 is: 137,086.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,485.64 : 199,440.18 = 99,313.20 : x
  2. Step 2: Convert to fraction form
    144,485.64/199,440.18 = 99,313.20/x
  3. Step 3: Cross multiply
    144,485.64x = 199,440.18 × 99,313.20
  4. Step 4: Simplify right side
    144,485.64x = 19,807,042,484.38
  5. Step 5: Solve for x
    x = 19,807,042,484.38/144,485.64
  6. Step 6: Final answer
    x = 137,086.58

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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.