Home / 145,514.90-200,812.24-81,852.14

Finding the Fourth Proportional to 145,514.90, 200,812.24 and 81,852.14

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Solution

The fourth proportional to 145,514.90, 200,812.24 and 81,852.14 is: 112,956.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,514.90 : 200,812.24 = 81,852.14 : x
  2. Step 2: Convert to fraction form
    145,514.90/200,812.24 = 81,852.14/x
  3. Step 3: Cross multiply
    145,514.90x = 200,812.24 × 81,852.14
  4. Step 4: Simplify right side
    145,514.90x = 16,436,911,582.19
  5. Step 5: Solve for x
    x = 16,436,911,582.19/145,514.90
  6. Step 6: Final answer
    x = 112,956.90

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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.