Home / 180,542.72-249,179.28-105,135.68

Finding the Fourth Proportional to 180,542.72, 249,179.28 and 105,135.68

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Solution

The fourth proportional to 180,542.72, 249,179.28 and 105,135.68 is: 145,104.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,542.72 : 249,179.28 = 105,135.68 : x
  2. Step 2: Convert to fraction form
    180,542.72/249,179.28 = 105,135.68/x
  3. Step 3: Cross multiply
    180,542.72x = 249,179.28 × 105,135.68
  4. Step 4: Simplify right side
    180,542.72x = 26,197,633,044.71
  5. Step 5: Solve for x
    x = 26,197,633,044.71/180,542.72
  6. Step 6: Final answer
    x = 145,104.90

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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.