Home / 124,428.20-186,642.30-84,511.40

Finding the Fourth Proportional to 124,428.20, 186,642.30 and 84,511.40

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Solution

The fourth proportional to 124,428.20, 186,642.30 and 84,511.40 is: 126,767.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,428.20 : 186,642.30 = 84,511.40 : x
  2. Step 2: Convert to fraction form
    124,428.20/186,642.30 = 84,511.40/x
  3. Step 3: Cross multiply
    124,428.20x = 186,642.30 × 84,511.40
  4. Step 4: Simplify right side
    124,428.20x = 15,773,402,072.22
  5. Step 5: Solve for x
    x = 15,773,402,072.22/124,428.20
  6. Step 6: Final answer
    x = 126,767.10

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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.