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Finding the Fourth Proportional to 156,551.56, 216,041.23 and 84,931.56

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Solution

The fourth proportional to 156,551.56, 216,041.23 and 84,931.56 is: 117,205.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,551.56 : 216,041.23 = 84,931.56 : x
  2. Step 2: Convert to fraction form
    156,551.56/216,041.23 = 84,931.56/x
  3. Step 3: Cross multiply
    156,551.56x = 216,041.23 × 84,931.56
  4. Step 4: Simplify right side
    156,551.56x = 18,348,718,012.84
  5. Step 5: Solve for x
    x = 18,348,718,012.84/156,551.56
  6. Step 6: Final answer
    x = 117,205.59

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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.