Home / 111,521.68-153,900.48-63,777.04

Finding the Fourth Proportional to 111,521.68, 153,900.48 and 63,777.04

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Solution

The fourth proportional to 111,521.68, 153,900.48 and 63,777.04 is: 88,012.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,521.68 : 153,900.48 = 63,777.04 : x
  2. Step 2: Convert to fraction form
    111,521.68/153,900.48 = 63,777.04/x
  3. Step 3: Cross multiply
    111,521.68x = 153,900.48 × 63,777.04
  4. Step 4: Simplify right side
    111,521.68x = 9,815,317,068.98
  5. Step 5: Solve for x
    x = 9,815,317,068.98/111,521.68
  6. Step 6: Final answer
    x = 88,012.64

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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.