Home / 134,631.60-201,947.40-45,985.20

Finding the Fourth Proportional to 134,631.60, 201,947.40 and 45,985.20

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Solution

The fourth proportional to 134,631.60, 201,947.40 and 45,985.20 is: 68,977.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,631.60 : 201,947.40 = 45,985.20 : x
  2. Step 2: Convert to fraction form
    134,631.60/201,947.40 = 45,985.20/x
  3. Step 3: Cross multiply
    134,631.60x = 201,947.40 × 45,985.20
  4. Step 4: Simplify right side
    134,631.60x = 9,286,591,578.48
  5. Step 5: Solve for x
    x = 9,286,591,578.48/134,631.60
  6. Step 6: Final answer
    x = 68,977.80

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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.