Home / 102,457.52-141,413.94-66,585.20

Finding the Fourth Proportional to 102,457.52, 141,413.94 and 66,585.20

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Solution

The fourth proportional to 102,457.52, 141,413.94 and 66,585.20 is: 91,902.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,457.52 : 141,413.94 = 66,585.20 : x
  2. Step 2: Convert to fraction form
    102,457.52/141,413.94 = 66,585.20/x
  3. Step 3: Cross multiply
    102,457.52x = 141,413.94 × 66,585.20
  4. Step 4: Simplify right side
    102,457.52x = 9,416,075,477.69
  5. Step 5: Solve for x
    x = 9,416,075,477.69/102,457.52
  6. Step 6: Final answer
    x = 91,902.24

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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.