Home / 108,744.51-163,236.08-86,398.82

Finding the Fourth Proportional to 108,744.51, 163,236.08 and 86,398.82

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Solution

The fourth proportional to 108,744.51, 163,236.08 and 86,398.82 is: 129,693.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,744.51 : 163,236.08 = 86,398.82 : x
  2. Step 2: Convert to fraction form
    108,744.51/163,236.08 = 86,398.82/x
  3. Step 3: Cross multiply
    108,744.51x = 163,236.08 × 86,398.82
  4. Step 4: Simplify right side
    108,744.51x = 14,103,403,445.25
  5. Step 5: Solve for x
    x = 14,103,403,445.25/108,744.51
  6. Step 6: Final answer
    x = 129,693.02

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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.