Home / 257,457.08-386,185.93-107,615.39

Finding the Fourth Proportional to 257,457.08, 386,185.93 and 107,615.39

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Solution

The fourth proportional to 257,457.08, 386,185.93 and 107,615.39 is: 161,423.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,457.08 : 386,185.93 = 107,615.39 : x
  2. Step 2: Convert to fraction form
    257,457.08/386,185.93 = 107,615.39/x
  3. Step 3: Cross multiply
    257,457.08x = 386,185.93 × 107,615.39
  4. Step 4: Simplify right side
    257,457.08x = 41,559,547,269.49
  5. Step 5: Solve for x
    x = 41,559,547,269.49/257,457.08
  6. Step 6: Final answer
    x = 161,423.20

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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.