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Finding the Fourth Proportional to 156,599.01, 216,106.83 and 84,980.25

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Solution

The fourth proportional to 156,599.01, 216,106.83 and 84,980.25 is: 117,272.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,599.01 : 216,106.83 = 84,980.25 : x
  2. Step 2: Convert to fraction form
    156,599.01/216,106.83 = 84,980.25/x
  3. Step 3: Cross multiply
    156,599.01x = 216,106.83 × 84,980.25
  4. Step 4: Simplify right side
    156,599.01x = 18,364,812,440.11
  5. Step 5: Solve for x
    x = 18,364,812,440.11/156,599.01
  6. Step 6: Final answer
    x = 117,272.85

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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.