Home / 85,172.04-127,845.27-70,333.65

Finding the Fourth Proportional to 85,172.04, 127,845.27 and 70,333.65

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Solution

The fourth proportional to 85,172.04, 127,845.27 and 70,333.65 is: 105,572.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,172.04 : 127,845.27 = 70,333.65 : x
  2. Step 2: Convert to fraction form
    85,172.04/127,845.27 = 70,333.65/x
  3. Step 3: Cross multiply
    85,172.04x = 127,845.27 × 70,333.65
  4. Step 4: Simplify right side
    85,172.04x = 8,991,824,474.34
  5. Step 5: Solve for x
    x = 8,991,824,474.34/85,172.04
  6. Step 6: Final answer
    x = 105,572.49

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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.