Home / 109,360.54-163,761.90-87,206.23

Finding the Fourth Proportional to 109,360.54, 163,761.90 and 87,206.23

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Solution

The fourth proportional to 109,360.54, 163,761.90 and 87,206.23 is: 130,586.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,360.54 : 163,761.90 = 87,206.23 : x
  2. Step 2: Convert to fraction form
    109,360.54/163,761.90 = 87,206.23/x
  3. Step 3: Cross multiply
    109,360.54x = 163,761.90 × 87,206.23
  4. Step 4: Simplify right side
    109,360.54x = 14,281,057,916.64
  5. Step 5: Solve for x
    x = 14,281,057,916.64/109,360.54
  6. Step 6: Final answer
    x = 130,586.94

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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.