Home / 185,623.52-256,158.16-100,740.40

Finding the Fourth Proportional to 185,623.52, 256,158.16 and 100,740.40

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Solution

The fourth proportional to 185,623.52, 256,158.16 and 100,740.40 is: 139,020.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,623.52 : 256,158.16 = 100,740.40 : x
  2. Step 2: Convert to fraction form
    185,623.52/256,158.16 = 100,740.40/x
  3. Step 3: Cross multiply
    185,623.52x = 256,158.16 × 100,740.40
  4. Step 4: Simplify right side
    185,623.52x = 25,805,475,501.66
  5. Step 5: Solve for x
    x = 25,805,475,501.66/185,623.52
  6. Step 6: Final answer
    x = 139,020.51

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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.