Home / 90,004.24-135,006.36-70,253.20

Finding the Fourth Proportional to 90,004.24, 135,006.36 and 70,253.20

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Solution

The fourth proportional to 90,004.24, 135,006.36 and 70,253.20 is: 105,379.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,004.24 : 135,006.36 = 70,253.20 : x
  2. Step 2: Convert to fraction form
    90,004.24/135,006.36 = 70,253.20/x
  3. Step 3: Cross multiply
    90,004.24x = 135,006.36 × 70,253.20
  4. Step 4: Simplify right side
    90,004.24x = 9,484,628,810.35
  5. Step 5: Solve for x
    x = 9,484,628,810.35/90,004.24
  6. Step 6: Final answer
    x = 105,379.80

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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.