Home / 105,232.86-145,218.96-57,486.42

Finding the Fourth Proportional to 105,232.86, 145,218.96 and 57,486.42

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Solution

The fourth proportional to 105,232.86, 145,218.96 and 57,486.42 is: 79,329.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,232.86 : 145,218.96 = 57,486.42 : x
  2. Step 2: Convert to fraction form
    105,232.86/145,218.96 = 57,486.42/x
  3. Step 3: Cross multiply
    105,232.86x = 145,218.96 × 57,486.42
  4. Step 4: Simplify right side
    105,232.86x = 8,348,118,126.52
  5. Step 5: Solve for x
    x = 8,348,118,126.52/105,232.86
  6. Step 6: Final answer
    x = 79,329.96

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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.