Home / 103,688.20-155,417.10-44,513.80

Finding the Fourth Proportional to 103,688.20, 155,417.10 and 44,513.80

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Solution

The fourth proportional to 103,688.20, 155,417.10 and 44,513.80 is: 66,721.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,688.20 : 155,417.10 = 44,513.80 : x
  2. Step 2: Convert to fraction form
    103,688.20/155,417.10 = 44,513.80/x
  3. Step 3: Cross multiply
    103,688.20x = 155,417.10 × 44,513.80
  4. Step 4: Simplify right side
    103,688.20x = 6,918,205,705.98
  5. Step 5: Solve for x
    x = 6,918,205,705.98/103,688.20
  6. Step 6: Final answer
    x = 66,721.24

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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.