Home / 139,566.17-209,317.81-39,724.15

Finding the Fourth Proportional to 139,566.17, 209,317.81 and 39,724.15

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Solution

The fourth proportional to 139,566.17, 209,317.81 and 39,724.15 is: 59,577.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,566.17 : 209,317.81 = 39,724.15 : x
  2. Step 2: Convert to fraction form
    139,566.17/209,317.81 = 39,724.15/x
  3. Step 3: Cross multiply
    139,566.17x = 209,317.81 × 39,724.15
  4. Step 4: Simplify right side
    139,566.17x = 8,314,971,459.51
  5. Step 5: Solve for x
    x = 8,314,971,459.51/139,566.17
  6. Step 6: Final answer
    x = 59,577.27

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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.