Home / 127,688.86-176,208.96-70,327.09

Finding the Fourth Proportional to 127,688.86, 176,208.96 and 70,327.09

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Solution

The fourth proportional to 127,688.86, 176,208.96 and 70,327.09 is: 97,050.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,688.86 : 176,208.96 = 70,327.09 : x
  2. Step 2: Convert to fraction form
    127,688.86/176,208.96 = 70,327.09/x
  3. Step 3: Cross multiply
    127,688.86x = 176,208.96 × 70,327.09
  4. Step 4: Simplify right side
    127,688.86x = 12,392,262,948.20
  5. Step 5: Solve for x
    x = 12,392,262,948.20/127,688.86
  6. Step 6: Final answer
    x = 97,050.46

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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.