Home / 132,449.51-182,779.34-72,020.19

Finding the Fourth Proportional to 132,449.51, 182,779.34 and 72,020.19

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Solution

The fourth proportional to 132,449.51, 182,779.34 and 72,020.19 is: 99,387.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,449.51 : 182,779.34 = 72,020.19 : x
  2. Step 2: Convert to fraction form
    132,449.51/182,779.34 = 72,020.19/x
  3. Step 3: Cross multiply
    132,449.51x = 182,779.34 × 72,020.19
  4. Step 4: Simplify right side
    132,449.51x = 13,163,802,794.87
  5. Step 5: Solve for x
    x = 13,163,802,794.87/132,449.51
  6. Step 6: Final answer
    x = 99,387.33

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1.5x scale

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.