Home / 170,003.55-255,068.10-70,172.40

Finding the Fourth Proportional to 170,003.55, 255,068.10 and 70,172.40

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Solution

The fourth proportional to 170,003.55, 255,068.10 and 70,172.40 is: 105,284.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,003.55 : 255,068.10 = 70,172.40 : x
  2. Step 2: Convert to fraction form
    170,003.55/255,068.10 = 70,172.40/x
  3. Step 3: Cross multiply
    170,003.55x = 255,068.10 × 70,172.40
  4. Step 4: Simplify right side
    170,003.55x = 17,898,740,740.44
  5. Step 5: Solve for x
    x = 17,898,740,740.44/170,003.55
  6. Step 6: Final answer
    x = 105,284.51

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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.