Home / 108,883.60-163,325.40-91,387.60

Finding the Fourth Proportional to 108,883.60, 163,325.40 and 91,387.60

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Solution

The fourth proportional to 108,883.60, 163,325.40 and 91,387.60 is: 137,081.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,883.60 : 163,325.40 = 91,387.60 : x
  2. Step 2: Convert to fraction form
    108,883.60/163,325.40 = 91,387.60/x
  3. Step 3: Cross multiply
    108,883.60x = 163,325.40 × 91,387.60
  4. Step 4: Simplify right side
    108,883.60x = 14,925,916,325.04
  5. Step 5: Solve for x
    x = 14,925,916,325.04/108,883.60
  6. Step 6: Final answer
    x = 137,081.40

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1.5x scale

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.