Home / 143,056.97-197,409.42-89,338.76

Finding the Fourth Proportional to 143,056.97, 197,409.42 and 89,338.76

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Solution

The fourth proportional to 143,056.97, 197,409.42 and 89,338.76 is: 123,281.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,056.97 : 197,409.42 = 89,338.76 : x
  2. Step 2: Convert to fraction form
    143,056.97/197,409.42 = 89,338.76/x
  3. Step 3: Cross multiply
    143,056.97x = 197,409.42 × 89,338.76
  4. Step 4: Simplify right side
    143,056.97x = 17,636,312,795.12
  5. Step 5: Solve for x
    x = 17,636,312,795.12/143,056.97
  6. Step 6: Final answer
    x = 123,281.74

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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.