Home / 132,986.52-183,521.16-72,557.19

Finding the Fourth Proportional to 132,986.52, 183,521.16 and 72,557.19

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Solution

The fourth proportional to 132,986.52, 183,521.16 and 72,557.19 is: 100,128.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,986.52 : 183,521.16 = 72,557.19 : x
  2. Step 2: Convert to fraction form
    132,986.52/183,521.16 = 72,557.19/x
  3. Step 3: Cross multiply
    132,986.52x = 183,521.16 × 72,557.19
  4. Step 4: Simplify right side
    132,986.52x = 13,315,779,675.14
  5. Step 5: Solve for x
    x = 13,315,779,675.14/132,986.52
  6. Step 6: Final answer
    x = 100,128.79

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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.