Home / 105,317.58-145,348.29-57,578.16

Finding the Fourth Proportional to 105,317.58, 145,348.29 and 57,578.16

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Solution

The fourth proportional to 105,317.58, 145,348.29 and 57,578.16 is: 79,463.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,317.58 : 145,348.29 = 57,578.16 : x
  2. Step 2: Convert to fraction form
    105,317.58/145,348.29 = 57,578.16/x
  3. Step 3: Cross multiply
    105,317.58x = 145,348.29 × 57,578.16
  4. Step 4: Simplify right side
    105,317.58x = 8,368,887,097.35
  5. Step 5: Solve for x
    x = 8,368,887,097.35/105,317.58
  6. Step 6: Final answer
    x = 79,463.34

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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.