Home / 126,888.17-190,349.73-42,654.87

Finding the Fourth Proportional to 126,888.17, 190,349.73 and 42,654.87

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Solution

The fourth proportional to 126,888.17, 190,349.73 and 42,654.87 is: 63,988.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,888.17 : 190,349.73 = 42,654.87 : x
  2. Step 2: Convert to fraction form
    126,888.17/190,349.73 = 42,654.87/x
  3. Step 3: Cross multiply
    126,888.17x = 190,349.73 × 42,654.87
  4. Step 4: Simplify right side
    126,888.17x = 8,119,342,987.69
  5. Step 5: Solve for x
    x = 8,119,342,987.69/126,888.17
  6. Step 6: Final answer
    x = 63,988.18

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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.