Home / 139,740.64-209,581.56-44,979.29

Finding the Fourth Proportional to 139,740.64, 209,581.56 and 44,979.29

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Solution

The fourth proportional to 139,740.64, 209,581.56 and 44,979.29 is: 67,459.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,740.64 : 209,581.56 = 44,979.29 : x
  2. Step 2: Convert to fraction form
    139,740.64/209,581.56 = 44,979.29/x
  3. Step 3: Cross multiply
    139,740.64x = 209,581.56 × 44,979.29
  4. Step 4: Simplify right side
    139,740.64x = 9,426,829,503.92
  5. Step 5: Solve for x
    x = 9,426,829,503.92/139,740.64
  6. Step 6: Final answer
    x = 67,459.47

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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.