Home / 666,721.40-1,000,082.10-168,085.40

Finding the Fourth Proportional to 666,721.40, 1,000,082.10 and 168,085.40

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Solution

The fourth proportional to 666,721.40, 1,000,082.10 and 168,085.40 is: 252,128.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,721.40 : 1,000,082.10 = 168,085.40 : x
  2. Step 2: Convert to fraction form
    666,721.40/1,000,082.10 = 168,085.40/x
  3. Step 3: Cross multiply
    666,721.40x = 1,000,082.10 × 168,085.40
  4. Step 4: Simplify right side
    666,721.40x = 168,099,199,811.34
  5. Step 5: Solve for x
    x = 168,099,199,811.34/666,721.40
  6. Step 6: Final answer
    x = 252,128.10

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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.