Home / 154,240.61-212,876.10-93,830.20

Finding the Fourth Proportional to 154,240.61, 212,876.10 and 93,830.20

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Solution

The fourth proportional to 154,240.61, 212,876.10 and 93,830.20 is: 129,500.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,240.61 : 212,876.10 = 93,830.20 : x
  2. Step 2: Convert to fraction form
    154,240.61/212,876.10 = 93,830.20/x
  3. Step 3: Cross multiply
    154,240.61x = 212,876.10 × 93,830.20
  4. Step 4: Simplify right side
    154,240.61x = 19,974,206,506.03
  5. Step 5: Solve for x
    x = 19,974,206,506.03/154,240.61
  6. Step 6: Final answer
    x = 129,500.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.