Home / 120,277.40-180,416.10-57,954.20

Finding the Fourth Proportional to 120,277.40, 180,416.10 and 57,954.20

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Solution

The fourth proportional to 120,277.40, 180,416.10 and 57,954.20 is: 86,931.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,277.40 : 180,416.10 = 57,954.20 : x
  2. Step 2: Convert to fraction form
    120,277.40/180,416.10 = 57,954.20/x
  3. Step 3: Cross multiply
    120,277.40x = 180,416.10 × 57,954.20
  4. Step 4: Simplify right side
    120,277.40x = 10,455,870,742.62
  5. Step 5: Solve for x
    x = 10,455,870,742.62/120,277.40
  6. Step 6: Final answer
    x = 86,931.30

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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.