Home / 134,769.60-201,862.80-87,530.40

Finding the Fourth Proportional to 134,769.60, 201,862.80 and 87,530.40

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Solution

The fourth proportional to 134,769.60, 201,862.80 and 87,530.40 is: 131,106.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,769.60 : 201,862.80 = 87,530.40 : x
  2. Step 2: Convert to fraction form
    134,769.60/201,862.80 = 87,530.40/x
  3. Step 3: Cross multiply
    134,769.60x = 201,862.80 × 87,530.40
  4. Step 4: Simplify right side
    134,769.60x = 17,669,131,629.12
  5. Step 5: Solve for x
    x = 17,669,131,629.12/134,769.60
  6. Step 6: Final answer
    x = 131,106.21

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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.