Home / 130,032.63-179,442.68-72,673.02

Finding the Fourth Proportional to 130,032.63, 179,442.68 and 72,673.02

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Solution

The fourth proportional to 130,032.63, 179,442.68 and 72,673.02 is: 100,287.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,032.63 : 179,442.68 = 72,673.02 : x
  2. Step 2: Convert to fraction form
    130,032.63/179,442.68 = 72,673.02/x
  3. Step 3: Cross multiply
    130,032.63x = 179,442.68 × 72,673.02
  4. Step 4: Simplify right side
    130,032.63x = 13,040,641,109.13
  5. Step 5: Solve for x
    x = 13,040,641,109.13/130,032.63
  6. Step 6: Final answer
    x = 100,287.45

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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.