Home / 105,080.17-145,011.11-57,334.52

Finding the Fourth Proportional to 105,080.17, 145,011.11 and 57,334.52

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Solution

The fourth proportional to 105,080.17, 145,011.11 and 57,334.52 is: 79,121.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,080.17 : 145,011.11 = 57,334.52 : x
  2. Step 2: Convert to fraction form
    105,080.17/145,011.11 = 57,334.52/x
  3. Step 3: Cross multiply
    105,080.17x = 145,011.11 × 57,334.52
  4. Step 4: Simplify right side
    105,080.17x = 8,314,142,386.52
  5. Step 5: Solve for x
    x = 8,314,142,386.52/105,080.17
  6. Step 6: Final answer
    x = 79,121.90

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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.