Home / 140,211.10-210,316.65-84,915.10

Finding the Fourth Proportional to 140,211.10, 210,316.65 and 84,915.10

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Solution

The fourth proportional to 140,211.10, 210,316.65 and 84,915.10 is: 127,372.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,211.10 : 210,316.65 = 84,915.10 : x
  2. Step 2: Convert to fraction form
    140,211.10/210,316.65 = 84,915.10/x
  3. Step 3: Cross multiply
    140,211.10x = 210,316.65 × 84,915.10
  4. Step 4: Simplify right side
    140,211.10x = 17,859,059,366.42
  5. Step 5: Solve for x
    x = 17,859,059,366.42/140,211.10
  6. Step 6: Final answer
    x = 127,372.65

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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.