Home / 148,129.68-204,206.32-105,614.40

Finding the Fourth Proportional to 148,129.68, 204,206.32 and 105,614.40

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Solution

The fourth proportional to 148,129.68, 204,206.32 and 105,614.40 is: 145,596.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,129.68 : 204,206.32 = 105,614.40 : x
  2. Step 2: Convert to fraction form
    148,129.68/204,206.32 = 105,614.40/x
  3. Step 3: Cross multiply
    148,129.68x = 204,206.32 × 105,614.40
  4. Step 4: Simplify right side
    148,129.68x = 21,567,127,963.01
  5. Step 5: Solve for x
    x = 21,567,127,963.01/148,129.68
  6. Step 6: Final answer
    x = 145,596.26

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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.