Home / 156,686.02-216,227.15-85,066.36

Finding the Fourth Proportional to 156,686.02, 216,227.15 and 85,066.36

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Solution

The fourth proportional to 156,686.02, 216,227.15 and 85,066.36 is: 117,391.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,686.02 : 216,227.15 = 85,066.36 : x
  2. Step 2: Convert to fraction form
    156,686.02/216,227.15 = 85,066.36/x
  3. Step 3: Cross multiply
    156,686.02x = 216,227.15 × 85,066.36
  4. Step 4: Simplify right side
    156,686.02x = 18,393,656,583.67
  5. Step 5: Solve for x
    x = 18,393,656,583.67/156,686.02
  6. Step 6: Final answer
    x = 117,391.82

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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.