Home / 96,926.40-133,639.20-78,955.20

Finding the Fourth Proportional to 96,926.40, 133,639.20 and 78,955.20

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Solution

The fourth proportional to 96,926.40, 133,639.20 and 78,955.20 is: 108,861.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,926.40 : 133,639.20 = 78,955.20 : x
  2. Step 2: Convert to fraction form
    96,926.40/133,639.20 = 78,955.20/x
  3. Step 3: Cross multiply
    96,926.40x = 133,639.20 × 78,955.20
  4. Step 4: Simplify right side
    96,926.40x = 10,551,509,763.84
  5. Step 5: Solve for x
    x = 10,551,509,763.84/96,926.40
  6. Step 6: Final answer
    x = 108,861.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.