Home / 112,219.13-168,328.48-65,439.20

Finding the Fourth Proportional to 112,219.13, 168,328.48 and 65,439.20

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Solution

The fourth proportional to 112,219.13, 168,328.48 and 65,439.20 is: 98,158.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,219.13 : 168,328.48 = 65,439.20 : x
  2. Step 2: Convert to fraction form
    112,219.13/168,328.48 = 65,439.20/x
  3. Step 3: Cross multiply
    112,219.13x = 168,328.48 × 65,439.20
  4. Step 4: Simplify right side
    112,219.13x = 11,015,281,068.42
  5. Step 5: Solve for x
    x = 11,015,281,068.42/112,219.13
  6. Step 6: Final answer
    x = 98,158.67

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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.