Home / 111,066.40-153,275.70-63,319.24

Finding the Fourth Proportional to 111,066.40, 153,275.70 and 63,319.24

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Solution

The fourth proportional to 111,066.40, 153,275.70 and 63,319.24 is: 87,382.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,066.40 : 153,275.70 = 63,319.24 : x
  2. Step 2: Convert to fraction form
    111,066.40/153,275.70 = 63,319.24/x
  3. Step 3: Cross multiply
    111,066.40x = 153,275.70 × 63,319.24
  4. Step 4: Simplify right side
    111,066.40x = 9,705,300,834.47
  5. Step 5: Solve for x
    x = 9,705,300,834.47/111,066.40
  6. Step 6: Final answer
    x = 87,382.87

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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.