Home / 124,639.74-186,948.54-31,145.40

Finding the Fourth Proportional to 124,639.74, 186,948.54 and 31,145.40

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Solution

The fourth proportional to 124,639.74, 186,948.54 and 31,145.40 is: 46,715.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,639.74 : 186,948.54 = 31,145.40 : x
  2. Step 2: Convert to fraction form
    124,639.74/186,948.54 = 31,145.40/x
  3. Step 3: Cross multiply
    124,639.74x = 186,948.54 × 31,145.40
  4. Step 4: Simplify right side
    124,639.74x = 5,822,587,057.72
  5. Step 5: Solve for x
    x = 5,822,587,057.72/124,639.74
  6. Step 6: Final answer
    x = 46,715.33

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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.