Home / 147,386.36-203,335.44-90,699.32

Finding the Fourth Proportional to 147,386.36, 203,335.44 and 90,699.32

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Solution

The fourth proportional to 147,386.36, 203,335.44 and 90,699.32 is: 125,129.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,386.36 : 203,335.44 = 90,699.32 : x
  2. Step 2: Convert to fraction form
    147,386.36/203,335.44 = 90,699.32/x
  3. Step 3: Cross multiply
    147,386.36x = 203,335.44 × 90,699.32
  4. Step 4: Simplify right side
    147,386.36x = 18,442,386,139.90
  5. Step 5: Solve for x
    x = 18,442,386,139.90/147,386.36
  6. Step 6: Final answer
    x = 125,129.53

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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.