Home / 105,260.04-145,260.81-57,516.48

Finding the Fourth Proportional to 105,260.04, 145,260.81 and 57,516.48

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Solution

The fourth proportional to 105,260.04, 145,260.81 and 57,516.48 is: 79,373.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,260.04 : 145,260.81 = 57,516.48 : x
  2. Step 2: Convert to fraction form
    105,260.04/145,260.81 = 57,516.48/x
  3. Step 3: Cross multiply
    105,260.04x = 145,260.81 × 57,516.48
  4. Step 4: Simplify right side
    105,260.04x = 8,354,890,473.15
  5. Step 5: Solve for x
    x = 8,354,890,473.15/105,260.04
  6. Step 6: Final answer
    x = 79,373.81

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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.