Home / 111,118.47-153,342.32-60,130.08

Finding the Fourth Proportional to 111,118.47, 153,342.32 and 60,130.08

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Solution

The fourth proportional to 111,118.47, 153,342.32 and 60,130.08 is: 82,978.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,118.47 : 153,342.32 = 60,130.08 : x
  2. Step 2: Convert to fraction form
    111,118.47/153,342.32 = 60,130.08/x
  3. Step 3: Cross multiply
    111,118.47x = 153,342.32 × 60,130.08
  4. Step 4: Simplify right side
    111,118.47x = 9,220,485,668.34
  5. Step 5: Solve for x
    x = 9,220,485,668.34/111,118.47
  6. Step 6: Final answer
    x = 82,978.88

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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.