Home / 180,721.56-249,404.22-112,778.76

Finding the Fourth Proportional to 180,721.56, 249,404.22 and 112,778.76

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Solution

The fourth proportional to 180,721.56, 249,404.22 and 112,778.76 is: 155,639.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,721.56 : 249,404.22 = 112,778.76 : x
  2. Step 2: Convert to fraction form
    180,721.56/249,404.22 = 112,778.76/x
  3. Step 3: Cross multiply
    180,721.56x = 249,404.22 × 112,778.76
  4. Step 4: Simplify right side
    180,721.56x = 28,127,498,670.37
  5. Step 5: Solve for x
    x = 28,127,498,670.37/180,721.56
  6. Step 6: Final answer
    x = 155,639.97

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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.