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Finding the Fourth Proportional to 146,345.76, 201,957.12 and 79,277.76

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Solution

The fourth proportional to 146,345.76, 201,957.12 and 79,277.76 is: 109,403.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,345.76 : 201,957.12 = 79,277.76 : x
  2. Step 2: Convert to fraction form
    146,345.76/201,957.12 = 79,277.76/x
  3. Step 3: Cross multiply
    146,345.76x = 201,957.12 × 79,277.76
  4. Step 4: Simplify right side
    146,345.76x = 16,010,708,089.65
  5. Step 5: Solve for x
    x = 16,010,708,089.65/146,345.76
  6. Step 6: Final answer
    x = 109,403.29

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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.