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Finding the Fourth Proportional to 159,553.12, 220,184.76 and 87,935.74

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Solution

The fourth proportional to 159,553.12, 220,184.76 and 87,935.74 is: 121,352.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,553.12 : 220,184.76 = 87,935.74 : x
  2. Step 2: Convert to fraction form
    159,553.12/220,184.76 = 87,935.74/x
  3. Step 3: Cross multiply
    159,553.12x = 220,184.76 × 87,935.74
  4. Step 4: Simplify right side
    159,553.12x = 19,362,109,807.32
  5. Step 5: Solve for x
    x = 19,362,109,807.32/159,553.12
  6. Step 6: Final answer
    x = 121,352.12

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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.