Home / 128,946.45-193,419.68-34,176.45

Finding the Fourth Proportional to 128,946.45, 193,419.68 and 34,176.45

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Solution

The fourth proportional to 128,946.45, 193,419.68 and 34,176.45 is: 51,264.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,946.45 : 193,419.68 = 34,176.45 : x
  2. Step 2: Convert to fraction form
    128,946.45/193,419.68 = 34,176.45/x
  3. Step 3: Cross multiply
    128,946.45x = 193,419.68 × 34,176.45
  4. Step 4: Simplify right side
    128,946.45x = 6,610,397,851.65
  5. Step 5: Solve for x
    x = 6,610,397,851.65/128,946.45
  6. Step 6: Final answer
    x = 51,264.68

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.