Home / 143,457.51-197,557.86-143,020.11

Finding the Fourth Proportional to 143,457.51, 197,557.86 and 143,020.11

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Solution

The fourth proportional to 143,457.51, 197,557.86 and 143,020.11 is: 196,955.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,457.51 : 197,557.86 = 143,020.11 : x
  2. Step 2: Convert to fraction form
    143,457.51/197,557.86 = 143,020.11/x
  3. Step 3: Cross multiply
    143,457.51x = 197,557.86 × 143,020.11
  4. Step 4: Simplify right side
    143,457.51x = 28,254,746,868.56
  5. Step 5: Solve for x
    x = 28,254,746,868.56/143,457.51
  6. Step 6: Final answer
    x = 196,955.51

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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.