Home / 104,521.40-156,782.10-103,938.20

Finding the Fourth Proportional to 104,521.40, 156,782.10 and 103,938.20

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Solution

The fourth proportional to 104,521.40, 156,782.10 and 103,938.20 is: 155,907.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,521.40 : 156,782.10 = 103,938.20 : x
  2. Step 2: Convert to fraction form
    104,521.40/156,782.10 = 103,938.20/x
  3. Step 3: Cross multiply
    104,521.40x = 156,782.10 × 103,938.20
  4. Step 4: Simplify right side
    104,521.40x = 16,295,649,266.22
  5. Step 5: Solve for x
    x = 16,295,649,266.22/104,521.40
  6. Step 6: Final answer
    x = 155,907.30

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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.