Home / 282,612.12-423,918.16-132,742.47

Finding the Fourth Proportional to 282,612.12, 423,918.16 and 132,742.47

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Solution

The fourth proportional to 282,612.12, 423,918.16 and 132,742.47 is: 199,113.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,612.12 : 423,918.16 = 132,742.47 : x
  2. Step 2: Convert to fraction form
    282,612.12/423,918.16 = 132,742.47/x
  3. Step 3: Cross multiply
    282,612.12x = 423,918.16 × 132,742.47
  4. Step 4: Simplify right side
    282,612.12x = 56,271,943,636.26
  5. Step 5: Solve for x
    x = 56,271,943,636.26/282,612.12
  6. Step 6: Final answer
    x = 199,113.70

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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.