Home / 136,146.72-204,220.16-42,659.76

Finding the Fourth Proportional to 136,146.72, 204,220.16 and 42,659.76

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Solution

The fourth proportional to 136,146.72, 204,220.16 and 42,659.76 is: 63,989.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,146.72 : 204,220.16 = 42,659.76 : x
  2. Step 2: Convert to fraction form
    136,146.72/204,220.16 = 42,659.76/x
  3. Step 3: Cross multiply
    136,146.72x = 204,220.16 × 42,659.76
  4. Step 4: Simplify right side
    136,146.72x = 8,711,983,012.76
  5. Step 5: Solve for x
    x = 8,711,983,012.76/136,146.72
  6. Step 6: Final answer
    x = 63,989.67

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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.