Home / 156,859.02-216,461.08-85,236.66

Finding the Fourth Proportional to 156,859.02, 216,461.08 and 85,236.66

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Solution

The fourth proportional to 156,859.02, 216,461.08 and 85,236.66 is: 117,624.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,859.02 : 216,461.08 = 85,236.66 : x
  2. Step 2: Convert to fraction form
    156,859.02/216,461.08 = 85,236.66/x
  3. Step 3: Cross multiply
    156,859.02x = 216,461.08 × 85,236.66
  4. Step 4: Simplify right side
    156,859.02x = 18,450,417,970.70
  5. Step 5: Solve for x
    x = 18,450,417,970.70/156,859.02
  6. Step 6: Final answer
    x = 117,624.21

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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.