Home / 111,457.17-153,821.70-63,701.42

Finding the Fourth Proportional to 111,457.17, 153,821.70 and 63,701.42

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Solution

The fourth proportional to 111,457.17, 153,821.70 and 63,701.42 is: 87,914.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,457.17 : 153,821.70 = 63,701.42 : x
  2. Step 2: Convert to fraction form
    111,457.17/153,821.70 = 63,701.42/x
  3. Step 3: Cross multiply
    111,457.17x = 153,821.70 × 63,701.42
  4. Step 4: Simplify right side
    111,457.17x = 9,798,659,947.71
  5. Step 5: Solve for x
    x = 9,798,659,947.71/111,457.17
  6. Step 6: Final answer
    x = 87,914.13

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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.