Home / 145,436.40-200,801.64-111,384.72

Finding the Fourth Proportional to 145,436.40, 200,801.64 and 111,384.72

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Solution

The fourth proportional to 145,436.40, 200,801.64 and 111,384.72 is: 153,787.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,436.40 : 200,801.64 = 111,384.72 : x
  2. Step 2: Convert to fraction form
    145,436.40/200,801.64 = 111,384.72/x
  3. Step 3: Cross multiply
    145,436.40x = 200,801.64 × 111,384.72
  4. Step 4: Simplify right side
    145,436.40x = 22,366,234,446.94
  5. Step 5: Solve for x
    x = 22,366,234,446.94/145,436.40
  6. Step 6: Final answer
    x = 153,787.05

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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.