Home / 143,226.10-197,569.78-89,417.70

Finding the Fourth Proportional to 143,226.10, 197,569.78 and 89,417.70

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Solution

The fourth proportional to 143,226.10, 197,569.78 and 89,417.70 is: 123,345.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,226.10 : 197,569.78 = 89,417.70 : x
  2. Step 2: Convert to fraction form
    143,226.10/197,569.78 = 89,417.70/x
  3. Step 3: Cross multiply
    143,226.10x = 197,569.78 × 89,417.70
  4. Step 4: Simplify right side
    143,226.10x = 17,666,235,093.56
  5. Step 5: Solve for x
    x = 17,666,235,093.56/143,226.10
  6. Step 6: Final answer
    x = 123,345.08

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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.