Home / 156,875.35-216,489.67-85,255.39

Finding the Fourth Proportional to 156,875.35, 216,489.67 and 85,255.39

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Solution

The fourth proportional to 156,875.35, 216,489.67 and 85,255.39 is: 117,653.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,875.35 : 216,489.67 = 85,255.39 : x
  2. Step 2: Convert to fraction form
    156,875.35/216,489.67 = 85,255.39/x
  3. Step 3: Cross multiply
    156,875.35x = 216,489.67 × 85,255.39
  4. Step 4: Simplify right side
    156,875.35x = 18,456,911,246.82
  5. Step 5: Solve for x
    x = 18,456,911,246.82/156,875.35
  6. Step 6: Final answer
    x = 117,653.36

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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.