Home / 110,128.17-151,971.80-62,381.91

Finding the Fourth Proportional to 110,128.17, 151,971.80 and 62,381.91

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Solution

The fourth proportional to 110,128.17, 151,971.80 and 62,381.91 is: 86,084.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,128.17 : 151,971.80 = 62,381.91 : x
  2. Step 2: Convert to fraction form
    110,128.17/151,971.80 = 62,381.91/x
  3. Step 3: Cross multiply
    110,128.17x = 151,971.80 × 62,381.91
  4. Step 4: Simplify right side
    110,128.17x = 9,480,291,408.12
  5. Step 5: Solve for x
    x = 9,480,291,408.12/110,128.17
  6. Step 6: Final answer
    x = 86,084.16

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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.