Home / 145,032.46-200,141.68-80,497.92

Finding the Fourth Proportional to 145,032.46, 200,141.68 and 80,497.92

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Solution

The fourth proportional to 145,032.46, 200,141.68 and 80,497.92 is: 111,085.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,032.46 : 200,141.68 = 80,497.92 : x
  2. Step 2: Convert to fraction form
    145,032.46/200,141.68 = 80,497.92/x
  3. Step 3: Cross multiply
    145,032.46x = 200,141.68 × 80,497.92
  4. Step 4: Simplify right side
    145,032.46x = 16,110,989,244.42
  5. Step 5: Solve for x
    x = 16,110,989,244.42/145,032.46
  6. Step 6: Final answer
    x = 111,085.40

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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.