Home / 105,364.83-145,403.46-57,618.21

Finding the Fourth Proportional to 105,364.83, 145,403.46 and 57,618.21

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Solution

The fourth proportional to 105,364.83, 145,403.46 and 57,618.21 is: 79,513.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,364.83 : 145,403.46 = 57,618.21 : x
  2. Step 2: Convert to fraction form
    105,364.83/145,403.46 = 57,618.21/x
  3. Step 3: Cross multiply
    105,364.83x = 145,403.46 × 57,618.21
  4. Step 4: Simplify right side
    105,364.83x = 8,377,887,093.01
  5. Step 5: Solve for x
    x = 8,377,887,093.01/105,364.83
  6. Step 6: Final answer
    x = 79,513.13

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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.