Home / 115,126.98-158,831.54-69,788.42

Finding the Fourth Proportional to 115,126.98, 158,831.54 and 69,788.42

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Solution

The fourth proportional to 115,126.98, 158,831.54 and 69,788.42 is: 96,281.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,126.98 : 158,831.54 = 69,788.42 : x
  2. Step 2: Convert to fraction form
    115,126.98/158,831.54 = 69,788.42/x
  3. Step 3: Cross multiply
    115,126.98x = 158,831.54 × 69,788.42
  4. Step 4: Simplify right side
    115,126.98x = 11,084,602,222.77
  5. Step 5: Solve for x
    x = 11,084,602,222.77/115,126.98
  6. Step 6: Final answer
    x = 96,281.53

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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.