Home / 127,788.78-176,349.72-70,430.16

Finding the Fourth Proportional to 127,788.78, 176,349.72 and 70,430.16

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Solution

The fourth proportional to 127,788.78, 176,349.72 and 70,430.16 is: 97,194.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,788.78 : 176,349.72 = 70,430.16 : x
  2. Step 2: Convert to fraction form
    127,788.78/176,349.72 = 70,430.16/x
  3. Step 3: Cross multiply
    127,788.78x = 176,349.72 × 70,430.16
  4. Step 4: Simplify right side
    127,788.78x = 12,420,338,995.56
  5. Step 5: Solve for x
    x = 12,420,338,995.56/127,788.78
  6. Step 6: Final answer
    x = 97,194.28

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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.