Home / 131,790.37-181,897.54-89,362.57

Finding the Fourth Proportional to 131,790.37, 181,897.54 and 89,362.57

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Solution

The fourth proportional to 131,790.37, 181,897.54 and 89,362.57 is: 123,338.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,790.37 : 181,897.54 = 89,362.57 : x
  2. Step 2: Convert to fraction form
    131,790.37/181,897.54 = 89,362.57/x
  3. Step 3: Cross multiply
    131,790.37x = 181,897.54 × 89,362.57
  4. Step 4: Simplify right side
    131,790.37x = 16,254,832,329.23
  5. Step 5: Solve for x
    x = 16,254,832,329.23/131,790.37
  6. Step 6: Final answer
    x = 123,338.54

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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.