Home / 103,243.16-142,525.71-69,239.30

Finding the Fourth Proportional to 103,243.16, 142,525.71 and 69,239.30

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Solution

The fourth proportional to 103,243.16, 142,525.71 and 69,239.30 is: 95,583.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,243.16 : 142,525.71 = 69,239.30 : x
  2. Step 2: Convert to fraction form
    103,243.16/142,525.71 = 69,239.30/x
  3. Step 3: Cross multiply
    103,243.16x = 142,525.71 × 69,239.30
  4. Step 4: Simplify right side
    103,243.16x = 9,868,379,679.77
  5. Step 5: Solve for x
    x = 9,868,379,679.77/103,243.16
  6. Step 6: Final answer
    x = 95,583.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.