Home / 156,065.16-215,369.88-84,445.22

Finding the Fourth Proportional to 156,065.16, 215,369.88 and 84,445.22

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Solution

The fourth proportional to 156,065.16, 215,369.88 and 84,445.22 is: 116,534.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,065.16 : 215,369.88 = 84,445.22 : x
  2. Step 2: Convert to fraction form
    156,065.16/215,369.88 = 84,445.22/x
  3. Step 3: Cross multiply
    156,065.16x = 215,369.88 × 84,445.22
  4. Step 4: Simplify right side
    156,065.16x = 18,186,956,897.97
  5. Step 5: Solve for x
    x = 18,186,956,897.97/156,065.16
  6. Step 6: Final answer
    x = 116,534.38

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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.