Home / 156,957.47-216,610.16-85,335.95

Finding the Fourth Proportional to 156,957.47, 216,610.16 and 85,335.95

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Solution

The fourth proportional to 156,957.47, 216,610.16 and 85,335.95 is: 117,768.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,957.47 : 216,610.16 = 85,335.95 : x
  2. Step 2: Convert to fraction form
    156,957.47/216,610.16 = 85,335.95/x
  3. Step 3: Cross multiply
    156,957.47x = 216,610.16 × 85,335.95
  4. Step 4: Simplify right side
    156,957.47x = 18,484,633,783.25
  5. Step 5: Solve for x
    x = 18,484,633,783.25/156,957.47
  6. Step 6: Final answer
    x = 117,768.42

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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.