Home / 150,368.40-207,508.32-86,705.28

Finding the Fourth Proportional to 150,368.40, 207,508.32 and 86,705.28

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Solution

The fourth proportional to 150,368.40, 207,508.32 and 86,705.28 is: 119,653.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,368.40 : 207,508.32 = 86,705.28 : x
  2. Step 2: Convert to fraction form
    150,368.40/207,508.32 = 86,705.28/x
  3. Step 3: Cross multiply
    150,368.40x = 207,508.32 × 86,705.28
  4. Step 4: Simplify right side
    150,368.40x = 17,992,066,987.93
  5. Step 5: Solve for x
    x = 17,992,066,987.93/150,368.40
  6. Step 6: Final answer
    x = 119,653.24

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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.