Home / 105,446.34-145,515.96-57,700.08

Finding the Fourth Proportional to 105,446.34, 145,515.96 and 57,700.08

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Solution

The fourth proportional to 105,446.34, 145,515.96 and 57,700.08 is: 79,626.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,446.34 : 145,515.96 = 57,700.08 : x
  2. Step 2: Convert to fraction form
    105,446.34/145,515.96 = 57,700.08/x
  3. Step 3: Cross multiply
    105,446.34x = 145,515.96 × 57,700.08
  4. Step 4: Simplify right side
    105,446.34x = 8,396,282,533.28
  5. Step 5: Solve for x
    x = 8,396,282,533.28/105,446.34
  6. Step 6: Final answer
    x = 79,626.12

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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.