Home / 169,401.03-254,008.74-78,117.35

Finding the Fourth Proportional to 169,401.03, 254,008.74 and 78,117.35

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Solution

The fourth proportional to 169,401.03, 254,008.74 and 78,117.35 is: 117,133.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,401.03 : 254,008.74 = 78,117.35 : x
  2. Step 2: Convert to fraction form
    169,401.03/254,008.74 = 78,117.35/x
  3. Step 3: Cross multiply
    169,401.03x = 254,008.74 × 78,117.35
  4. Step 4: Simplify right side
    169,401.03x = 19,842,488,009.42
  5. Step 5: Solve for x
    x = 19,842,488,009.42/169,401.03
  6. Step 6: Final answer
    x = 117,133.22

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.