Home / 180,711.05-249,390.63-100,147.64

Finding the Fourth Proportional to 180,711.05, 249,390.63 and 100,147.64

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Solution

The fourth proportional to 180,711.05, 249,390.63 and 100,147.64 is: 138,208.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,711.05 : 249,390.63 = 100,147.64 : x
  2. Step 2: Convert to fraction form
    180,711.05/249,390.63 = 100,147.64/x
  3. Step 3: Cross multiply
    180,711.05x = 249,390.63 × 100,147.64
  4. Step 4: Simplify right side
    180,711.05x = 24,975,881,785.66
  5. Step 5: Solve for x
    x = 24,975,881,785.66/180,711.05
  6. Step 6: Final answer
    x = 138,208.94

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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.