Home / 128,744.29-193,079.53-38,795.72

Finding the Fourth Proportional to 128,744.29, 193,079.53 and 38,795.72

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Solution

The fourth proportional to 128,744.29, 193,079.53 and 38,795.72 is: 58,182.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,744.29 : 193,079.53 = 38,795.72 : x
  2. Step 2: Convert to fraction form
    128,744.29/193,079.53 = 38,795.72/x
  3. Step 3: Cross multiply
    128,744.29x = 193,079.53 × 38,795.72
  4. Step 4: Simplify right side
    128,744.29x = 7,490,658,466.71
  5. Step 5: Solve for x
    x = 7,490,658,466.71/128,744.29
  6. Step 6: Final answer
    x = 58,182.45

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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.