Home / 113,387.60-169,973.40-42,291.20

Finding the Fourth Proportional to 113,387.60, 169,973.40 and 42,291.20

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Solution

The fourth proportional to 113,387.60, 169,973.40 and 42,291.20 is: 63,396.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,387.60 : 169,973.40 = 42,291.20 : x
  2. Step 2: Convert to fraction form
    113,387.60/169,973.40 = 42,291.20/x
  3. Step 3: Cross multiply
    113,387.60x = 169,973.40 × 42,291.20
  4. Step 4: Simplify right side
    113,387.60x = 7,188,379,054.08
  5. Step 5: Solve for x
    x = 7,188,379,054.08/113,387.60
  6. Step 6: Final answer
    x = 63,396.52

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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.