Home / 109,812.60-164,718.90-92,705.40

Finding the Fourth Proportional to 109,812.60, 164,718.90 and 92,705.40

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Solution

The fourth proportional to 109,812.60, 164,718.90 and 92,705.40 is: 139,058.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,812.60 : 164,718.90 = 92,705.40 : x
  2. Step 2: Convert to fraction form
    109,812.60/164,718.90 = 92,705.40/x
  3. Step 3: Cross multiply
    109,812.60x = 164,718.90 × 92,705.40
  4. Step 4: Simplify right side
    109,812.60x = 15,270,331,512.06
  5. Step 5: Solve for x
    x = 15,270,331,512.06/109,812.60
  6. Step 6: Final answer
    x = 139,058.10

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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.