Home / 105,460.38-145,534.86-57,713.58

Finding the Fourth Proportional to 105,460.38, 145,534.86 and 57,713.58

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Solution

The fourth proportional to 105,460.38, 145,534.86 and 57,713.58 is: 79,644.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,460.38 : 145,534.86 = 57,713.58 : x
  2. Step 2: Convert to fraction form
    105,460.38/145,534.86 = 57,713.58/x
  3. Step 3: Cross multiply
    105,460.38x = 145,534.86 × 57,713.58
  4. Step 4: Simplify right side
    105,460.38x = 8,399,337,785.40
  5. Step 5: Solve for x
    x = 8,399,337,785.40/105,460.38
  6. Step 6: Final answer
    x = 79,644.49

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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.