Home / 111,299.04-153,645.86-63,543.16

Finding the Fourth Proportional to 111,299.04, 153,645.86 and 63,543.16

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Solution

The fourth proportional to 111,299.04, 153,645.86 and 63,543.16 is: 87,719.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,299.04 : 153,645.86 = 63,543.16 : x
  2. Step 2: Convert to fraction form
    111,299.04/153,645.86 = 63,543.16/x
  3. Step 3: Cross multiply
    111,299.04x = 153,645.86 × 63,543.16
  4. Step 4: Simplify right side
    111,299.04x = 9,763,143,465.32
  5. Step 5: Solve for x
    x = 9,763,143,465.32/111,299.04
  6. Step 6: Final answer
    x = 87,719.93

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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.