Home / 113,561.20-170,359.80-38,688.40

Finding the Fourth Proportional to 113,561.20, 170,359.80 and 38,688.40

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Solution

The fourth proportional to 113,561.20, 170,359.80 and 38,688.40 is: 58,038.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,561.20 : 170,359.80 = 38,688.40 : x
  2. Step 2: Convert to fraction form
    113,561.20/170,359.80 = 38,688.40/x
  3. Step 3: Cross multiply
    113,561.20x = 170,359.80 × 38,688.40
  4. Step 4: Simplify right side
    113,561.20x = 6,590,948,086.32
  5. Step 5: Solve for x
    x = 6,590,948,086.32/113,561.20
  6. Step 6: Final answer
    x = 58,038.73

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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.