Home / 180,664.64-249,296.96-100,072

Finding the Fourth Proportional to 180,664.64, 249,296.96 and 100,072

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Solution

The fourth proportional to 180,664.64, 249,296.96 and 100,072 is: 138,088.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,664.64 : 249,296.96 = 100,072 : x
  2. Step 2: Convert to fraction form
    180,664.64/249,296.96 = 100,072/x
  3. Step 3: Cross multiply
    180,664.64x = 249,296.96 × 100,072
  4. Step 4: Simplify right side
    180,664.64x = 24,947,645,381.12
  5. Step 5: Solve for x
    x = 24,947,645,381.12/180,664.64
  6. Step 6: Final answer
    x = 138,088.15

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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.