Home / 132,918.49-183,421.98-72,488.04

Finding the Fourth Proportional to 132,918.49, 183,421.98 and 72,488.04

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Solution

The fourth proportional to 132,918.49, 183,421.98 and 72,488.04 is: 100,030.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,918.49 : 183,421.98 = 72,488.04 : x
  2. Step 2: Convert to fraction form
    132,918.49/183,421.98 = 72,488.04/x
  3. Step 3: Cross multiply
    132,918.49x = 183,421.98 × 72,488.04
  4. Step 4: Simplify right side
    132,918.49x = 13,295,899,135.29
  5. Step 5: Solve for x
    x = 13,295,899,135.29/132,918.49
  6. Step 6: Final answer
    x = 100,030.47

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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.