Home / 156,128.38-215,461.35-94,853.71

Finding the Fourth Proportional to 156,128.38, 215,461.35 and 94,853.71

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Solution

The fourth proportional to 156,128.38, 215,461.35 and 94,853.71 is: 130,900.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,128.38 : 215,461.35 = 94,853.71 : x
  2. Step 2: Convert to fraction form
    156,128.38/215,461.35 = 94,853.71/x
  3. Step 3: Cross multiply
    156,128.38x = 215,461.35 × 94,853.71
  4. Step 4: Simplify right side
    156,128.38x = 20,437,308,409.11
  5. Step 5: Solve for x
    x = 20,437,308,409.11/156,128.38
  6. Step 6: Final answer
    x = 130,900.66

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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.