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Finding the Fourth Proportional to 104,124.99, 143,692.55 and 56,378.40

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Solution

The fourth proportional to 104,124.99, 143,692.55 and 56,378.40 is: 77,802.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,124.99 : 143,692.55 = 56,378.40 : x
  2. Step 2: Convert to fraction form
    104,124.99/143,692.55 = 56,378.40/x
  3. Step 3: Cross multiply
    104,124.99x = 143,692.55 × 56,378.40
  4. Step 4: Simplify right side
    104,124.99x = 8,101,155,451.60
  5. Step 5: Solve for x
    x = 8,101,155,451.60/104,124.99
  6. Step 6: Final answer
    x = 77,802.22

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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.