Home / 113,913.20-170,869.80-30,807.20

Finding the Fourth Proportional to 113,913.20, 170,869.80 and 30,807.20

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Solution

The fourth proportional to 113,913.20, 170,869.80 and 30,807.20 is: 46,210.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,913.20 : 170,869.80 = 30,807.20 : x
  2. Step 2: Convert to fraction form
    113,913.20/170,869.80 = 30,807.20/x
  3. Step 3: Cross multiply
    113,913.20x = 170,869.80 × 30,807.20
  4. Step 4: Simplify right side
    113,913.20x = 5,264,020,102.56
  5. Step 5: Solve for x
    x = 5,264,020,102.56/113,913.20
  6. Step 6: Final answer
    x = 46,210.80

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1.5x scale

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.