Home / 156,950.13-216,590.11-85,330.15

Finding the Fourth Proportional to 156,950.13, 216,590.11 and 85,330.15

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Solution

The fourth proportional to 156,950.13, 216,590.11 and 85,330.15 is: 117,755.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,950.13 : 216,590.11 = 85,330.15 : x
  2. Step 2: Convert to fraction form
    156,950.13/216,590.11 = 85,330.15/x
  3. Step 3: Cross multiply
    156,950.13x = 216,590.11 × 85,330.15
  4. Step 4: Simplify right side
    156,950.13x = 18,481,666,574.82
  5. Step 5: Solve for x
    x = 18,481,666,574.82/156,950.13
  6. Step 6: Final answer
    x = 117,755.03

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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.