Home / 156,258.40-215,637.12-84,638.24

Finding the Fourth Proportional to 156,258.40, 215,637.12 and 84,638.24

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Solution

The fourth proportional to 156,258.40, 215,637.12 and 84,638.24 is: 116,801.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,258.40 : 215,637.12 = 84,638.24 : x
  2. Step 2: Convert to fraction form
    156,258.40/215,637.12 = 84,638.24/x
  3. Step 3: Cross multiply
    156,258.40x = 215,637.12 × 84,638.24
  4. Step 4: Simplify right side
    156,258.40x = 18,251,146,315.47
  5. Step 5: Solve for x
    x = 18,251,146,315.47/156,258.40
  6. Step 6: Final answer
    x = 116,801.06

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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.