Home / 103,639.90-155,344.65-56,926.30

Finding the Fourth Proportional to 103,639.90, 155,344.65 and 56,926.30

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Solution

The fourth proportional to 103,639.90, 155,344.65 and 56,926.30 is: 85,326.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,639.90 : 155,344.65 = 56,926.30 : x
  2. Step 2: Convert to fraction form
    103,639.90/155,344.65 = 56,926.30/x
  3. Step 3: Cross multiply
    103,639.90x = 155,344.65 × 56,926.30
  4. Step 4: Simplify right side
    103,639.90x = 8,843,196,149.30
  5. Step 5: Solve for x
    x = 8,843,196,149.30/103,639.90
  6. Step 6: Final answer
    x = 85,326.17

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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.