Home / 103,614.35-155,330.40-70,226.15

Finding the Fourth Proportional to 103,614.35, 155,330.40 and 70,226.15

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Solution

The fourth proportional to 103,614.35, 155,330.40 and 70,226.15 is: 105,277.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,614.35 : 155,330.40 = 70,226.15 : x
  2. Step 2: Convert to fraction form
    103,614.35/155,330.40 = 70,226.15/x
  3. Step 3: Cross multiply
    103,614.35x = 155,330.40 × 70,226.15
  4. Step 4: Simplify right side
    103,614.35x = 10,908,255,969.96
  5. Step 5: Solve for x
    x = 10,908,255,969.96/103,614.35
  6. Step 6: Final answer
    x = 105,277.46

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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.