Home / 105,701.10-158,551.66-91,427.16

Finding the Fourth Proportional to 105,701.10, 158,551.66 and 91,427.16

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Solution

The fourth proportional to 105,701.10, 158,551.66 and 91,427.16 is: 137,140.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,701.10 : 158,551.66 = 91,427.16 : x
  2. Step 2: Convert to fraction form
    105,701.10/158,551.66 = 91,427.16/x
  3. Step 3: Cross multiply
    105,701.10x = 158,551.66 × 91,427.16
  4. Step 4: Simplify right side
    105,701.10x = 14,495,927,987.09
  5. Step 5: Solve for x
    x = 14,495,927,987.09/105,701.10
  6. Step 6: Final answer
    x = 137,140.75

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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.