Home / 155,933.12-215,187.57-84,313.19

Finding the Fourth Proportional to 155,933.12, 215,187.57 and 84,313.19

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Solution

The fourth proportional to 155,933.12, 215,187.57 and 84,313.19 is: 116,352.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,933.12 : 215,187.57 = 84,313.19 : x
  2. Step 2: Convert to fraction form
    155,933.12/215,187.57 = 84,313.19/x
  3. Step 3: Cross multiply
    155,933.12x = 215,187.57 × 84,313.19
  4. Step 4: Simplify right side
    155,933.12x = 18,143,151,013.02
  5. Step 5: Solve for x
    x = 18,143,151,013.02/155,933.12
  6. Step 6: Final answer
    x = 116,352.13

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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.