Home / 134,407.90-201,611.85-87,168.70

Finding the Fourth Proportional to 134,407.90, 201,611.85 and 87,168.70

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Solution

The fourth proportional to 134,407.90, 201,611.85 and 87,168.70 is: 130,753.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,407.90 : 201,611.85 = 87,168.70 : x
  2. Step 2: Convert to fraction form
    134,407.90/201,611.85 = 87,168.70/x
  3. Step 3: Cross multiply
    134,407.90x = 201,611.85 × 87,168.70
  4. Step 4: Simplify right side
    134,407.90x = 17,574,242,869.10
  5. Step 5: Solve for x
    x = 17,574,242,869.10/134,407.90
  6. Step 6: Final answer
    x = 130,753.05

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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.