Home / 145,887.38-201,200.46-100,637.54

Finding the Fourth Proportional to 145,887.38, 201,200.46 and 100,637.54

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Solution

The fourth proportional to 145,887.38, 201,200.46 and 100,637.54 is: 138,794.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,887.38 : 201,200.46 = 100,637.54 : x
  2. Step 2: Convert to fraction form
    145,887.38/201,200.46 = 100,637.54/x
  3. Step 3: Cross multiply
    145,887.38x = 201,200.46 × 100,637.54
  4. Step 4: Simplify right side
    145,887.38x = 20,248,319,341.27
  5. Step 5: Solve for x
    x = 20,248,319,341.27/145,887.38
  6. Step 6: Final answer
    x = 138,794.18

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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.