Home / 127,838.15-176,417.87-70,479.56

Finding the Fourth Proportional to 127,838.15, 176,417.87 and 70,479.56

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Solution

The fourth proportional to 127,838.15, 176,417.87 and 70,479.56 is: 97,262.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,838.15 : 176,417.87 = 70,479.56 : x
  2. Step 2: Convert to fraction form
    127,838.15/176,417.87 = 70,479.56/x
  3. Step 3: Cross multiply
    127,838.15x = 176,417.87 × 70,479.56
  4. Step 4: Simplify right side
    127,838.15x = 12,433,853,501.34
  5. Step 5: Solve for x
    x = 12,433,853,501.34/127,838.15
  6. Step 6: Final answer
    x = 97,262.47

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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.