Home / 105,252.81-145,244.61-57,507.81

Finding the Fourth Proportional to 105,252.81, 145,244.61 and 57,507.81

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Solution

The fourth proportional to 105,252.81, 145,244.61 and 57,507.81 is: 79,358.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,252.81 : 145,244.61 = 57,507.81 : x
  2. Step 2: Convert to fraction form
    105,252.81/145,244.61 = 57,507.81/x
  3. Step 3: Cross multiply
    105,252.81x = 145,244.61 × 57,507.81
  4. Step 4: Simplify right side
    105,252.81x = 8,352,699,435.40
  5. Step 5: Solve for x
    x = 8,352,699,435.40/105,252.81
  6. Step 6: Final answer
    x = 79,358.45

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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.