Home / 290,157.96-434,974.32-103,125.72

Finding the Fourth Proportional to 290,157.96, 434,974.32 and 103,125.72

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Solution

The fourth proportional to 290,157.96, 434,974.32 and 103,125.72 is: 154,595.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,157.96 : 434,974.32 = 103,125.72 : x
  2. Step 2: Convert to fraction form
    290,157.96/434,974.32 = 103,125.72/x
  3. Step 3: Cross multiply
    290,157.96x = 434,974.32 × 103,125.72
  4. Step 4: Simplify right side
    290,157.96x = 44,857,039,931.51
  5. Step 5: Solve for x
    x = 44,857,039,931.51/290,157.96
  6. Step 6: Final answer
    x = 154,595.24

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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.