Home / 154,655.36-213,527.24-118,781.28

Finding the Fourth Proportional to 154,655.36, 213,527.24 and 118,781.28

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Solution

The fourth proportional to 154,655.36, 213,527.24 and 118,781.28 is: 163,997.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,655.36 : 213,527.24 = 118,781.28 : x
  2. Step 2: Convert to fraction form
    154,655.36/213,527.24 = 118,781.28/x
  3. Step 3: Cross multiply
    154,655.36x = 213,527.24 × 118,781.28
  4. Step 4: Simplify right side
    154,655.36x = 25,363,038,882.07
  5. Step 5: Solve for x
    x = 25,363,038,882.07/154,655.36
  6. Step 6: Final answer
    x = 163,997.15

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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.