Home / 156,770.23-216,344.51-85,151.65

Finding the Fourth Proportional to 156,770.23, 216,344.51 and 85,151.65

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Solution

The fourth proportional to 156,770.23, 216,344.51 and 85,151.65 is: 117,510.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,770.23 : 216,344.51 = 85,151.65 : x
  2. Step 2: Convert to fraction form
    156,770.23/216,344.51 = 85,151.65/x
  3. Step 3: Cross multiply
    156,770.23x = 216,344.51 × 85,151.65
  4. Step 4: Simplify right side
    156,770.23x = 18,422,091,994.94
  5. Step 5: Solve for x
    x = 18,422,091,994.94/156,770.23
  6. Step 6: Final answer
    x = 117,510.14

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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.