Home / 147,387.36-203,336.82-90,700.32

Finding the Fourth Proportional to 147,387.36, 203,336.82 and 90,700.32

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Solution

The fourth proportional to 147,387.36, 203,336.82 and 90,700.32 is: 125,130.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,387.36 : 203,336.82 = 90,700.32 : x
  2. Step 2: Convert to fraction form
    147,387.36/203,336.82 = 90,700.32/x
  3. Step 3: Cross multiply
    147,387.36x = 203,336.82 × 90,700.32
  4. Step 4: Simplify right side
    147,387.36x = 18,442,714,641.78
  5. Step 5: Solve for x
    x = 18,442,714,641.78/147,387.36
  6. Step 6: Final answer
    x = 125,130.91

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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.