Home / 88,102.32-121,413.60-86,483.04

Finding the Fourth Proportional to 88,102.32, 121,413.60 and 86,483.04

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Solution

The fourth proportional to 88,102.32, 121,413.60 and 86,483.04 is: 119,182.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,102.32 : 121,413.60 = 86,483.04 : x
  2. Step 2: Convert to fraction form
    88,102.32/121,413.60 = 86,483.04/x
  3. Step 3: Cross multiply
    88,102.32x = 121,413.60 × 86,483.04
  4. Step 4: Simplify right side
    88,102.32x = 10,500,217,225.34
  5. Step 5: Solve for x
    x = 10,500,217,225.34/88,102.32
  6. Step 6: Final answer
    x = 119,182.07

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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.