Home / 411,132.51-616,765.23-126,756.48

Finding the Fourth Proportional to 411,132.51, 616,765.23 and 126,756.48

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Solution

The fourth proportional to 411,132.51, 616,765.23 and 126,756.48 is: 190,155.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,132.51 : 616,765.23 = 126,756.48 : x
  2. Step 2: Convert to fraction form
    411,132.51/616,765.23 = 126,756.48/x
  3. Step 3: Cross multiply
    411,132.51x = 616,765.23 × 126,756.48
  4. Step 4: Simplify right side
    411,132.51x = 78,178,989,541.19
  5. Step 5: Solve for x
    x = 78,178,989,541.19/411,132.51
  6. Step 6: Final answer
    x = 190,155.21

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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.