Home / 113,837.80-170,756.70-112,088.20

Finding the Fourth Proportional to 113,837.80, 170,756.70 and 112,088.20

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Solution

The fourth proportional to 113,837.80, 170,756.70 and 112,088.20 is: 168,132.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,837.80 : 170,756.70 = 112,088.20 : x
  2. Step 2: Convert to fraction form
    113,837.80/170,756.70 = 112,088.20/x
  3. Step 3: Cross multiply
    113,837.80x = 170,756.70 × 112,088.20
  4. Step 4: Simplify right side
    113,837.80x = 19,139,811,140.94
  5. Step 5: Solve for x
    x = 19,139,811,140.94/113,837.80
  6. Step 6: Final answer
    x = 168,132.30

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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.