Home / 130,823.94-180,542.61-74,240.58

Finding the Fourth Proportional to 130,823.94, 180,542.61 and 74,240.58

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Solution

The fourth proportional to 130,823.94, 180,542.61 and 74,240.58 is: 102,455.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,823.94 : 180,542.61 = 74,240.58 : x
  2. Step 2: Convert to fraction form
    130,823.94/180,542.61 = 74,240.58/x
  3. Step 3: Cross multiply
    130,823.94x = 180,542.61 × 74,240.58
  4. Step 4: Simplify right side
    130,823.94x = 13,403,588,081.11
  5. Step 5: Solve for x
    x = 13,403,588,081.11/130,823.94
  6. Step 6: Final answer
    x = 102,455.16

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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.