Home / 156,987.72-216,636.46-89,009.26

Finding the Fourth Proportional to 156,987.72, 216,636.46 and 89,009.26

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Solution

The fourth proportional to 156,987.72, 216,636.46 and 89,009.26 is: 122,829.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,987.72 : 216,636.46 = 89,009.26 : x
  2. Step 2: Convert to fraction form
    156,987.72/216,636.46 = 89,009.26/x
  3. Step 3: Cross multiply
    156,987.72x = 216,636.46 × 89,009.26
  4. Step 4: Simplify right side
    156,987.72x = 19,282,650,993.62
  5. Step 5: Solve for x
    x = 19,282,650,993.62/156,987.72
  6. Step 6: Final answer
    x = 122,829.04

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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.