Home / 156,685.02-216,225.77-85,065.36

Finding the Fourth Proportional to 156,685.02, 216,225.77 and 85,065.36

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Solution

The fourth proportional to 156,685.02, 216,225.77 and 85,065.36 is: 117,390.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,685.02 : 216,225.77 = 85,065.36 : x
  2. Step 2: Convert to fraction form
    156,685.02/216,225.77 = 85,065.36/x
  3. Step 3: Cross multiply
    156,685.02x = 216,225.77 × 85,065.36
  4. Step 4: Simplify right side
    156,685.02x = 18,393,322,541.00
  5. Step 5: Solve for x
    x = 18,393,322,541.00/156,685.02
  6. Step 6: Final answer
    x = 117,390.43

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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.