Home / 88,928.67-133,487-86,920.77

Finding the Fourth Proportional to 88,928.67, 133,487 and 86,920.77

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Solution

The fourth proportional to 88,928.67, 133,487 and 86,920.77 is: 130,473.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,928.67 : 133,487 = 86,920.77 : x
  2. Step 2: Convert to fraction form
    88,928.67/133,487 = 86,920.77/x
  3. Step 3: Cross multiply
    88,928.67x = 133,487 × 86,920.77
  4. Step 4: Simplify right side
    88,928.67x = 11,602,792,824.99
  5. Step 5: Solve for x
    x = 11,602,792,824.99/88,928.67
  6. Step 6: Final answer
    x = 130,473.03

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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.