Home / 156,900.59-216,525.02-85,280.61

Finding the Fourth Proportional to 156,900.59, 216,525.02 and 85,280.61

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Solution

The fourth proportional to 156,900.59, 216,525.02 and 85,280.61 is: 117,688.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,900.59 : 216,525.02 = 85,280.61 : x
  2. Step 2: Convert to fraction form
    156,900.59/216,525.02 = 85,280.61/x
  3. Step 3: Cross multiply
    156,900.59x = 216,525.02 × 85,280.61
  4. Step 4: Simplify right side
    156,900.59x = 18,465,385,359.46
  5. Step 5: Solve for x
    x = 18,465,385,359.46/156,900.59
  6. Step 6: Final answer
    x = 117,688.44

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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.