Home / 180,921.52-249,668.76-100,349.20

Finding the Fourth Proportional to 180,921.52, 249,668.76 and 100,349.20

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Solution

The fourth proportional to 180,921.52, 249,668.76 and 100,349.20 is: 138,480.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,921.52 : 249,668.76 = 100,349.20 : x
  2. Step 2: Convert to fraction form
    180,921.52/249,668.76 = 100,349.20/x
  3. Step 3: Cross multiply
    180,921.52x = 249,668.76 × 100,349.20
  4. Step 4: Simplify right side
    180,921.52x = 25,054,060,330.99
  5. Step 5: Solve for x
    x = 25,054,060,330.99/180,921.52
  6. Step 6: Final answer
    x = 138,480.27

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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.