Home / 156,276.72-215,681.40-92,638.80

Finding the Fourth Proportional to 156,276.72, 215,681.40 and 92,638.80

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Solution

The fourth proportional to 156,276.72, 215,681.40 and 92,638.80 is: 127,853.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,276.72 : 215,681.40 = 92,638.80 : x
  2. Step 2: Convert to fraction form
    156,276.72/215,681.40 = 92,638.80/x
  3. Step 3: Cross multiply
    156,276.72x = 215,681.40 × 92,638.80
  4. Step 4: Simplify right side
    156,276.72x = 19,980,466,078.32
  5. Step 5: Solve for x
    x = 19,980,466,078.32/156,276.72
  6. Step 6: Final answer
    x = 127,853.12

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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.