Home / 113,705.88-156,914.73-62,720.40

Finding the Fourth Proportional to 113,705.88, 156,914.73 and 62,720.40

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Solution

The fourth proportional to 113,705.88, 156,914.73 and 62,720.40 is: 86,554.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,705.88 : 156,914.73 = 62,720.40 : x
  2. Step 2: Convert to fraction form
    113,705.88/156,914.73 = 62,720.40/x
  3. Step 3: Cross multiply
    113,705.88x = 156,914.73 × 62,720.40
  4. Step 4: Simplify right side
    113,705.88x = 9,841,754,631.49
  5. Step 5: Solve for x
    x = 9,841,754,631.49/113,705.88
  6. Step 6: Final answer
    x = 86,554.49

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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.