Home / 180,865.02-249,581.55-100,289.58

Finding the Fourth Proportional to 180,865.02, 249,581.55 and 100,289.58

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Solution

The fourth proportional to 180,865.02, 249,581.55 and 100,289.58 is: 138,392.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,865.02 : 249,581.55 = 100,289.58 : x
  2. Step 2: Convert to fraction form
    180,865.02/249,581.55 = 100,289.58/x
  3. Step 3: Cross multiply
    180,865.02x = 249,581.55 × 100,289.58
  4. Step 4: Simplify right side
    180,865.02x = 25,030,428,825.25
  5. Step 5: Solve for x
    x = 25,030,428,825.25/180,865.02
  6. Step 6: Final answer
    x = 138,392.87

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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.