Home / 111,259.76-153,545-63,528.08

Finding the Fourth Proportional to 111,259.76, 153,545 and 63,528.08

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Solution

The fourth proportional to 111,259.76, 153,545 and 63,528.08 is: 87,672.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,259.76 : 153,545 = 63,528.08 : x
  2. Step 2: Convert to fraction form
    111,259.76/153,545 = 63,528.08/x
  3. Step 3: Cross multiply
    111,259.76x = 153,545 × 63,528.08
  4. Step 4: Simplify right side
    111,259.76x = 9,754,419,043.60
  5. Step 5: Solve for x
    x = 9,754,419,043.60/111,259.76
  6. Step 6: Final answer
    x = 87,672.48

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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.