Home / 103,403.10-142,692.50-63,184.16

Finding the Fourth Proportional to 103,403.10, 142,692.50 and 63,184.16

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Solution

The fourth proportional to 103,403.10, 142,692.50 and 63,184.16 is: 87,191.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,403.10 : 142,692.50 = 63,184.16 : x
  2. Step 2: Convert to fraction form
    103,403.10/142,692.50 = 63,184.16/x
  3. Step 3: Cross multiply
    103,403.10x = 142,692.50 × 63,184.16
  4. Step 4: Simplify right side
    103,403.10x = 9,015,905,750.80
  5. Step 5: Solve for x
    x = 9,015,905,750.80/103,403.10
  6. Step 6: Final answer
    x = 87,191.83

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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.