Home / 180,743.76-249,428.16-100,173.06

Finding the Fourth Proportional to 180,743.76, 249,428.16 and 100,173.06

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Solution

The fourth proportional to 180,743.76, 249,428.16 and 100,173.06 is: 138,239.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,743.76 : 249,428.16 = 100,173.06 : x
  2. Step 2: Convert to fraction form
    180,743.76/249,428.16 = 100,173.06/x
  3. Step 3: Cross multiply
    180,743.76x = 249,428.16 × 100,173.06
  4. Step 4: Simplify right side
    180,743.76x = 24,985,982,037.37
  5. Step 5: Solve for x
    x = 24,985,982,037.37/180,743.76
  6. Step 6: Final answer
    x = 138,239.80

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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.