Home / 190,965.72-286,623.62-102,319.32

Finding the Fourth Proportional to 190,965.72, 286,623.62 and 102,319.32

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Solution

The fourth proportional to 190,965.72, 286,623.62 and 102,319.32 is: 153,572.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,965.72 : 286,623.62 = 102,319.32 : x
  2. Step 2: Convert to fraction form
    190,965.72/286,623.62 = 102,319.32/x
  3. Step 3: Cross multiply
    190,965.72x = 286,623.62 × 102,319.32
  4. Step 4: Simplify right side
    190,965.72x = 29,327,133,894.34
  5. Step 5: Solve for x
    x = 29,327,133,894.34/190,965.72
  6. Step 6: Final answer
    x = 153,572.77

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.