Home / 140,347.84-193,809.36-90,134.32

Finding the Fourth Proportional to 140,347.84, 193,809.36 and 90,134.32

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Solution

The fourth proportional to 140,347.84, 193,809.36 and 90,134.32 is: 124,468.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,347.84 : 193,809.36 = 90,134.32 : x
  2. Step 2: Convert to fraction form
    140,347.84/193,809.36 = 90,134.32/x
  3. Step 3: Cross multiply
    140,347.84x = 193,809.36 × 90,134.32
  4. Step 4: Simplify right side
    140,347.84x = 17,468,874,873.24
  5. Step 5: Solve for x
    x = 17,468,874,873.24/140,347.84
  6. Step 6: Final answer
    x = 124,468.43

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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.