Home / 105,207.81-145,184.53-57,461.35

Finding the Fourth Proportional to 105,207.81, 145,184.53 and 57,461.35

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Solution

The fourth proportional to 105,207.81, 145,184.53 and 57,461.35 is: 79,295.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,207.81 : 145,184.53 = 57,461.35 : x
  2. Step 2: Convert to fraction form
    105,207.81/145,184.53 = 57,461.35/x
  3. Step 3: Cross multiply
    105,207.81x = 145,184.53 × 57,461.35
  4. Step 4: Simplify right side
    105,207.81x = 8,342,498,079.69
  5. Step 5: Solve for x
    x = 8,342,498,079.69/105,207.81
  6. Step 6: Final answer
    x = 79,295.43

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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.