Home / 124,386.10-186,520.79-45,445.12

Finding the Fourth Proportional to 124,386.10, 186,520.79 and 45,445.12

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Solution

The fourth proportional to 124,386.10, 186,520.79 and 45,445.12 is: 68,146.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,386.10 : 186,520.79 = 45,445.12 : x
  2. Step 2: Convert to fraction form
    124,386.10/186,520.79 = 45,445.12/x
  3. Step 3: Cross multiply
    124,386.10x = 186,520.79 × 45,445.12
  4. Step 4: Simplify right side
    124,386.10x = 8,476,459,331.36
  5. Step 5: Solve for x
    x = 8,476,459,331.36/124,386.10
  6. Step 6: Final answer
    x = 68,146.36

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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.