Home / 98,972.10-148,285.35-85,148.10

Finding the Fourth Proportional to 98,972.10, 148,285.35 and 85,148.10

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Solution

The fourth proportional to 98,972.10, 148,285.35 and 85,148.10 is: 127,573.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,972.10 : 148,285.35 = 85,148.10 : x
  2. Step 2: Convert to fraction form
    98,972.10/148,285.35 = 85,148.10/x
  3. Step 3: Cross multiply
    98,972.10x = 148,285.35 × 85,148.10
  4. Step 4: Simplify right side
    98,972.10x = 12,626,215,810.34
  5. Step 5: Solve for x
    x = 12,626,215,810.34/98,972.10
  6. Step 6: Final answer
    x = 127,573.49

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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.