Home / 103,534.20-155,447.10-64,168.20

Finding the Fourth Proportional to 103,534.20, 155,447.10 and 64,168.20

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Solution

The fourth proportional to 103,534.20, 155,447.10 and 64,168.20 is: 96,342.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,534.20 : 155,447.10 = 64,168.20 : x
  2. Step 2: Convert to fraction form
    103,534.20/155,447.10 = 64,168.20/x
  3. Step 3: Cross multiply
    103,534.20x = 155,447.10 × 64,168.20
  4. Step 4: Simplify right side
    103,534.20x = 9,974,760,602.22
  5. Step 5: Solve for x
    x = 9,974,760,602.22/103,534.20
  6. Step 6: Final answer
    x = 96,342.66

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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.