Home / 180,654.48-249,288.51-100,085.40

Finding the Fourth Proportional to 180,654.48, 249,288.51 and 100,085.40

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Solution

The fourth proportional to 180,654.48, 249,288.51 and 100,085.40 is: 138,109.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,654.48 : 249,288.51 = 100,085.40 : x
  2. Step 2: Convert to fraction form
    180,654.48/249,288.51 = 100,085.40/x
  3. Step 3: Cross multiply
    180,654.48x = 249,288.51 × 100,085.40
  4. Step 4: Simplify right side
    180,654.48x = 24,950,140,238.75
  5. Step 5: Solve for x
    x = 24,950,140,238.75/180,654.48
  6. Step 6: Final answer
    x = 138,109.72

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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.