Home / 156,852.12-216,450.15-85,230.63

Finding the Fourth Proportional to 156,852.12, 216,450.15 and 85,230.63

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Solution

The fourth proportional to 156,852.12, 216,450.15 and 85,230.63 is: 117,615.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,852.12 : 216,450.15 = 85,230.63 : x
  2. Step 2: Convert to fraction form
    156,852.12/216,450.15 = 85,230.63/x
  3. Step 3: Cross multiply
    156,852.12x = 216,450.15 × 85,230.63
  4. Step 4: Simplify right side
    156,852.12x = 18,448,182,648.09
  5. Step 5: Solve for x
    x = 18,448,182,648.09/156,852.12
  6. Step 6: Final answer
    x = 117,615.13

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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.