Home / 120,083.04-180,133.92-70,168.32

Finding the Fourth Proportional to 120,083.04, 180,133.92 and 70,168.32

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Solution

The fourth proportional to 120,083.04, 180,133.92 and 70,168.32 is: 105,257.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,083.04 : 180,133.92 = 70,168.32 : x
  2. Step 2: Convert to fraction form
    120,083.04/180,133.92 = 70,168.32/x
  3. Step 3: Cross multiply
    120,083.04x = 180,133.92 × 70,168.32
  4. Step 4: Simplify right side
    120,083.04x = 12,639,694,541.41
  5. Step 5: Solve for x
    x = 12,639,694,541.41/120,083.04
  6. Step 6: Final answer
    x = 105,257.95

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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.