Home / 103,536.20-155,304.30-91,070.30

Finding the Fourth Proportional to 103,536.20, 155,304.30 and 91,070.30

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Solution

The fourth proportional to 103,536.20, 155,304.30 and 91,070.30 is: 136,605.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,536.20 : 155,304.30 = 91,070.30 : x
  2. Step 2: Convert to fraction form
    103,536.20/155,304.30 = 91,070.30/x
  3. Step 3: Cross multiply
    103,536.20x = 155,304.30 × 91,070.30
  4. Step 4: Simplify right side
    103,536.20x = 14,143,609,192.29
  5. Step 5: Solve for x
    x = 14,143,609,192.29/103,536.20
  6. Step 6: Final answer
    x = 136,605.45

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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.