Home / 103,613.77-155,405.23-28,726.10

Finding the Fourth Proportional to 103,613.77, 155,405.23 and 28,726.10

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Solution

The fourth proportional to 103,613.77, 155,405.23 and 28,726.10 is: 43,084.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,613.77 : 155,405.23 = 28,726.10 : x
  2. Step 2: Convert to fraction form
    103,613.77/155,405.23 = 28,726.10/x
  3. Step 3: Cross multiply
    103,613.77x = 155,405.23 × 28,726.10
  4. Step 4: Simplify right side
    103,613.77x = 4,464,186,177.50
  5. Step 5: Solve for x
    x = 4,464,186,177.50/103,613.77
  6. Step 6: Final answer
    x = 43,084.87

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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.