Home / 145,025.29-200,146.95-80,500.58

Finding the Fourth Proportional to 145,025.29, 200,146.95 and 80,500.58

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Solution

The fourth proportional to 145,025.29, 200,146.95 and 80,500.58 is: 111,097.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,025.29 : 200,146.95 = 80,500.58 : x
  2. Step 2: Convert to fraction form
    145,025.29/200,146.95 = 80,500.58/x
  3. Step 3: Cross multiply
    145,025.29x = 200,146.95 × 80,500.58
  4. Step 4: Simplify right side
    145,025.29x = 16,111,946,435.87
  5. Step 5: Solve for x
    x = 16,111,946,435.87/145,025.29
  6. Step 6: Final answer
    x = 111,097.50

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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.