Home / 282,460.35-423,705.10-72,100.11

Finding the Fourth Proportional to 282,460.35, 423,705.10 and 72,100.11

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Solution

The fourth proportional to 282,460.35, 423,705.10 and 72,100.11 is: 108,153.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,460.35 : 423,705.10 = 72,100.11 : x
  2. Step 2: Convert to fraction form
    282,460.35/423,705.10 = 72,100.11/x
  3. Step 3: Cross multiply
    282,460.35x = 423,705.10 × 72,100.11
  4. Step 4: Simplify right side
    282,460.35x = 30,549,184,317.56
  5. Step 5: Solve for x
    x = 30,549,184,317.56/282,460.35
  6. Step 6: Final answer
    x = 108,153.89

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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.