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Finding the Fourth Proportional to 159,804.60, 220,437.30 and 102,423.51

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Solution

The fourth proportional to 159,804.60, 220,437.30 and 102,423.51 is: 141,284.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,804.60 : 220,437.30 = 102,423.51 : x
  2. Step 2: Convert to fraction form
    159,804.60/220,437.30 = 102,423.51/x
  3. Step 3: Cross multiply
    159,804.60x = 220,437.30 × 102,423.51
  4. Step 4: Simplify right side
    159,804.60x = 22,577,962,000.92
  5. Step 5: Solve for x
    x = 22,577,962,000.92/159,804.60
  6. Step 6: Final answer
    x = 141,284.81

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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.