Home / 113,835.60-170,607.60-87,409.35

Finding the Fourth Proportional to 113,835.60, 170,607.60 and 87,409.35

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Solution

The fourth proportional to 113,835.60, 170,607.60 and 87,409.35 is: 131,002.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,835.60 : 170,607.60 = 87,409.35 : x
  2. Step 2: Convert to fraction form
    113,835.60/170,607.60 = 87,409.35/x
  3. Step 3: Cross multiply
    113,835.60x = 170,607.60 × 87,409.35
  4. Step 4: Simplify right side
    113,835.60x = 14,912,699,421.06
  5. Step 5: Solve for x
    x = 14,912,699,421.06/113,835.60
  6. Step 6: Final answer
    x = 131,002.07

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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.