Home / 115,608.36-159,348.68-77,354.24

Finding the Fourth Proportional to 115,608.36, 159,348.68 and 77,354.24

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Solution

The fourth proportional to 115,608.36, 159,348.68 and 77,354.24 is: 106,621.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,608.36 : 159,348.68 = 77,354.24 : x
  2. Step 2: Convert to fraction form
    115,608.36/159,348.68 = 77,354.24/x
  3. Step 3: Cross multiply
    115,608.36x = 159,348.68 × 77,354.24
  4. Step 4: Simplify right side
    115,608.36x = 12,326,296,036.40
  5. Step 5: Solve for x
    x = 12,326,296,036.40/115,608.36
  6. Step 6: Final answer
    x = 106,621.15

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1.5x scale

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.