Home / 127,688.48-176,208.45-70,326.71

Finding the Fourth Proportional to 127,688.48, 176,208.45 and 70,326.71

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Solution

The fourth proportional to 127,688.48, 176,208.45 and 70,326.71 is: 97,049.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,688.48 : 176,208.45 = 70,326.71 : x
  2. Step 2: Convert to fraction form
    127,688.48/176,208.45 = 70,326.71/x
  3. Step 3: Cross multiply
    127,688.48x = 176,208.45 × 70,326.71
  4. Step 4: Simplify right side
    127,688.48x = 12,392,160,078.71
  5. Step 5: Solve for x
    x = 12,392,160,078.71/127,688.48
  6. Step 6: Final answer
    x = 97,049.95

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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.