Home / 103,861.23-143,331.30-63,574.26

Finding the Fourth Proportional to 103,861.23, 143,331.30 and 63,574.26

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Solution

The fourth proportional to 103,861.23, 143,331.30 and 63,574.26 is: 87,734.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,861.23 : 143,331.30 = 63,574.26 : x
  2. Step 2: Convert to fraction form
    103,861.23/143,331.30 = 63,574.26/x
  3. Step 3: Cross multiply
    103,861.23x = 143,331.30 × 63,574.26
  4. Step 4: Simplify right side
    103,861.23x = 9,112,181,332.34
  5. Step 5: Solve for x
    x = 9,112,181,332.34/103,861.23
  6. Step 6: Final answer
    x = 87,734.19

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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.