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Finding the Fourth Proportional to 181,107.52, 249,915.88 and 100,528.70

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Solution

The fourth proportional to 181,107.52, 249,915.88 and 100,528.70 is: 138,722.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,107.52 : 249,915.88 = 100,528.70 : x
  2. Step 2: Convert to fraction form
    181,107.52/249,915.88 = 100,528.70/x
  3. Step 3: Cross multiply
    181,107.52x = 249,915.88 × 100,528.70
  4. Step 4: Simplify right side
    181,107.52x = 25,123,718,525.76
  5. Step 5: Solve for x
    x = 25,123,718,525.76/181,107.52
  6. Step 6: Final answer
    x = 138,722.67

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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.