Home / 124,080.30-186,120.45-76,841.10

Finding the Fourth Proportional to 124,080.30, 186,120.45 and 76,841.10

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Solution

The fourth proportional to 124,080.30, 186,120.45 and 76,841.10 is: 115,261.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,080.30 : 186,120.45 = 76,841.10 : x
  2. Step 2: Convert to fraction form
    124,080.30/186,120.45 = 76,841.10/x
  3. Step 3: Cross multiply
    124,080.30x = 186,120.45 × 76,841.10
  4. Step 4: Simplify right side
    124,080.30x = 14,301,700,110.50
  5. Step 5: Solve for x
    x = 14,301,700,110.50/124,080.30
  6. Step 6: Final answer
    x = 115,261.65

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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.