Home / 104,860.36-157,290.18-42,530.68

Finding the Fourth Proportional to 104,860.36, 157,290.18 and 42,530.68

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Solution

The fourth proportional to 104,860.36, 157,290.18 and 42,530.68 is: 63,795.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,860.36 : 157,290.18 = 42,530.68 : x
  2. Step 2: Convert to fraction form
    104,860.36/157,290.18 = 42,530.68/x
  3. Step 3: Cross multiply
    104,860.36x = 157,290.18 × 42,530.68
  4. Step 4: Simplify right side
    104,860.36x = 6,689,658,312.72
  5. Step 5: Solve for x
    x = 6,689,658,312.72/104,860.36
  6. Step 6: Final answer
    x = 63,795.87

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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.