Home / 109,113.10-163,669.65-82,869.10

Finding the Fourth Proportional to 109,113.10, 163,669.65 and 82,869.10

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Solution

The fourth proportional to 109,113.10, 163,669.65 and 82,869.10 is: 124,303.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,113.10 : 163,669.65 = 82,869.10 : x
  2. Step 2: Convert to fraction form
    109,113.10/163,669.65 = 82,869.10/x
  3. Step 3: Cross multiply
    109,113.10x = 163,669.65 × 82,869.10
  4. Step 4: Simplify right side
    109,113.10x = 13,563,156,592.82
  5. Step 5: Solve for x
    x = 13,563,156,592.82/109,113.10
  6. Step 6: Final answer
    x = 124,303.65

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1.5x scale

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.