Home / 105,560.19-145,676.57-57,816.18

Finding the Fourth Proportional to 105,560.19, 145,676.57 and 57,816.18

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Solution

The fourth proportional to 105,560.19, 145,676.57 and 57,816.18 is: 79,788.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,560.19 : 145,676.57 = 57,816.18 : x
  2. Step 2: Convert to fraction form
    105,560.19/145,676.57 = 57,816.18/x
  3. Step 3: Cross multiply
    105,560.19x = 145,676.57 × 57,816.18
  4. Step 4: Simplify right side
    105,560.19x = 8,422,462,503.82
  5. Step 5: Solve for x
    x = 8,422,462,503.82/105,560.19
  6. Step 6: Final answer
    x = 79,788.25

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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.