Home / 109,293.11-163,938.75-30,407.10

Finding the Fourth Proportional to 109,293.11, 163,938.75 and 30,407.10

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Solution

The fourth proportional to 109,293.11, 163,938.75 and 30,407.10 is: 45,610.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,293.11 : 163,938.75 = 30,407.10 : x
  2. Step 2: Convert to fraction form
    109,293.11/163,938.75 = 30,407.10/x
  3. Step 3: Cross multiply
    109,293.11x = 163,938.75 × 30,407.10
  4. Step 4: Simplify right side
    109,293.11x = 4,984,901,965.13
  5. Step 5: Solve for x
    x = 4,984,901,965.13/109,293.11
  6. Step 6: Final answer
    x = 45,610.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.