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Finding the Fourth Proportional to 104,000.79, 143,520.55 and 56,254.01

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Solution

The fourth proportional to 104,000.79, 143,520.55 and 56,254.01 is: 77,630.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,000.79 : 143,520.55 = 56,254.01 : x
  2. Step 2: Convert to fraction form
    104,000.79/143,520.55 = 56,254.01/x
  3. Step 3: Cross multiply
    104,000.79x = 143,520.55 × 56,254.01
  4. Step 4: Simplify right side
    104,000.79x = 8,073,606,454.91
  5. Step 5: Solve for x
    x = 8,073,606,454.91/104,000.79
  6. Step 6: Final answer
    x = 77,630.24

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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.