Home / 135,147.15-186,495.04-74,714.18

Finding the Fourth Proportional to 135,147.15, 186,495.04 and 74,714.18

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Solution

The fourth proportional to 135,147.15, 186,495.04 and 74,714.18 is: 103,101.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,147.15 : 186,495.04 = 74,714.18 : x
  2. Step 2: Convert to fraction form
    135,147.15/186,495.04 = 74,714.18/x
  3. Step 3: Cross multiply
    135,147.15x = 186,495.04 × 74,714.18
  4. Step 4: Simplify right side
    135,147.15x = 13,933,823,987.67
  5. Step 5: Solve for x
    x = 13,933,823,987.67/135,147.15
  6. Step 6: Final answer
    x = 103,101.13

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1.5x scale

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.