Home / 107,128.17-147,821.36-59,381.51

Finding the Fourth Proportional to 107,128.17, 147,821.36 and 59,381.51

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Solution

The fourth proportional to 107,128.17, 147,821.36 and 59,381.51 is: 81,937.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,128.17 : 147,821.36 = 59,381.51 : x
  2. Step 2: Convert to fraction form
    107,128.17/147,821.36 = 59,381.51/x
  3. Step 3: Cross multiply
    107,128.17x = 147,821.36 × 59,381.51
  4. Step 4: Simplify right side
    107,128.17x = 8,777,854,531.04
  5. Step 5: Solve for x
    x = 8,777,854,531.04/107,128.17
  6. Step 6: Final answer
    x = 81,937.87

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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.