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Finding the Fourth Proportional to 123,898.53, 170,974.47 and 70,182.47

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Solution

The fourth proportional to 123,898.53, 170,974.47 and 70,182.47 is: 96,848.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,898.53 : 170,974.47 = 70,182.47 : x
  2. Step 2: Convert to fraction form
    123,898.53/170,974.47 = 70,182.47/x
  3. Step 3: Cross multiply
    123,898.53x = 170,974.47 × 70,182.47
  4. Step 4: Simplify right side
    123,898.53x = 11,999,409,756.67
  5. Step 5: Solve for x
    x = 11,999,409,756.67/123,898.53
  6. Step 6: Final answer
    x = 96,848.69

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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.