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Finding the Fourth Proportional to 156,618.51, 216,130.32 and 88,634.27

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Solution

The fourth proportional to 156,618.51, 216,130.32 and 88,634.27 is: 122,313.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,618.51 : 216,130.32 = 88,634.27 : x
  2. Step 2: Convert to fraction form
    156,618.51/216,130.32 = 88,634.27/x
  3. Step 3: Cross multiply
    156,618.51x = 216,130.32 × 88,634.27
  4. Step 4: Simplify right side
    156,618.51x = 19,156,552,057.41
  5. Step 5: Solve for x
    x = 19,156,552,057.41/156,618.51
  6. Step 6: Final answer
    x = 122,313.46

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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.