Home / 103,616.35-155,333.40-70,228.15

Finding the Fourth Proportional to 103,616.35, 155,333.40 and 70,228.15

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Solution

The fourth proportional to 103,616.35, 155,333.40 and 70,228.15 is: 105,280.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,616.35 : 155,333.40 = 70,228.15 : x
  2. Step 2: Convert to fraction form
    103,616.35/155,333.40 = 70,228.15/x
  3. Step 3: Cross multiply
    103,616.35x = 155,333.40 × 70,228.15
  4. Step 4: Simplify right side
    103,616.35x = 10,908,777,315.21
  5. Step 5: Solve for x
    x = 10,908,777,315.21/103,616.35
  6. Step 6: Final answer
    x = 105,280.46

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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.