Home / 103,614.10-155,421.15-91,950.10

Finding the Fourth Proportional to 103,614.10, 155,421.15 and 91,950.10

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Solution

The fourth proportional to 103,614.10, 155,421.15 and 91,950.10 is: 137,925.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,614.10 : 155,421.15 = 91,950.10 : x
  2. Step 2: Convert to fraction form
    103,614.10/155,421.15 = 91,950.10/x
  3. Step 3: Cross multiply
    103,614.10x = 155,421.15 × 91,950.10
  4. Step 4: Simplify right side
    103,614.10x = 14,290,990,284.62
  5. Step 5: Solve for x
    x = 14,290,990,284.62/103,614.10
  6. Step 6: Final answer
    x = 137,925.15

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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.