Home / 156,315.12-215,636.22-102,592.68

Finding the Fourth Proportional to 156,315.12, 215,636.22 and 102,592.68

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Solution

The fourth proportional to 156,315.12, 215,636.22 and 102,592.68 is: 141,526.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,315.12 : 215,636.22 = 102,592.68 : x
  2. Step 2: Convert to fraction form
    156,315.12/215,636.22 = 102,592.68/x
  3. Step 3: Cross multiply
    156,315.12x = 215,636.22 × 102,592.68
  4. Step 4: Simplify right side
    156,315.12x = 22,122,697,714.87
  5. Step 5: Solve for x
    x = 22,122,697,714.87/156,315.12
  6. Step 6: Final answer
    x = 141,526.28

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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.