Home / 111,637.48-154,021.62-69,180.52

Finding the Fourth Proportional to 111,637.48, 154,021.62 and 69,180.52

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Solution

The fourth proportional to 111,637.48, 154,021.62 and 69,180.52 is: 95,445.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,637.48 : 154,021.62 = 69,180.52 : x
  2. Step 2: Convert to fraction form
    111,637.48/154,021.62 = 69,180.52/x
  3. Step 3: Cross multiply
    111,637.48x = 154,021.62 × 69,180.52
  4. Step 4: Simplify right side
    111,637.48x = 10,655,295,762.84
  5. Step 5: Solve for x
    x = 10,655,295,762.84/111,637.48
  6. Step 6: Final answer
    x = 95,445.51

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1.5x scale

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.