Home / 124,078.43-171,258.65-70,394.87

Finding the Fourth Proportional to 124,078.43, 171,258.65 and 70,394.87

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Solution

The fourth proportional to 124,078.43, 171,258.65 and 70,394.87 is: 97,162.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,078.43 : 171,258.65 = 70,394.87 : x
  2. Step 2: Convert to fraction form
    124,078.43/171,258.65 = 70,394.87/x
  3. Step 3: Cross multiply
    124,078.43x = 171,258.65 × 70,394.87
  4. Step 4: Simplify right side
    124,078.43x = 12,055,731,139.25
  5. Step 5: Solve for x
    x = 12,055,731,139.25/124,078.43
  6. Step 6: Final answer
    x = 97,162.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.