Home / 103,612.35-155,327.40-70,224.15

Finding the Fourth Proportional to 103,612.35, 155,327.40 and 70,224.15

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Solution

The fourth proportional to 103,612.35, 155,327.40 and 70,224.15 is: 105,274.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,612.35 : 155,327.40 = 70,224.15 : x
  2. Step 2: Convert to fraction form
    103,612.35/155,327.40 = 70,224.15/x
  3. Step 3: Cross multiply
    103,612.35x = 155,327.40 × 70,224.15
  4. Step 4: Simplify right side
    103,612.35x = 10,907,734,636.71
  5. Step 5: Solve for x
    x = 10,907,734,636.71/103,612.35
  6. Step 6: Final answer
    x = 105,274.46

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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.