Home / 104,736.79-144,536.10-56,990.32

Finding the Fourth Proportional to 104,736.79, 144,536.10 and 56,990.32

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Solution

The fourth proportional to 104,736.79, 144,536.10 and 56,990.32 is: 78,646.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,736.79 : 144,536.10 = 56,990.32 : x
  2. Step 2: Convert to fraction form
    104,736.79/144,536.10 = 56,990.32/x
  3. Step 3: Cross multiply
    104,736.79x = 144,536.10 × 56,990.32
  4. Step 4: Simplify right side
    104,736.79x = 8,237,158,590.55
  5. Step 5: Solve for x
    x = 8,237,158,590.55/104,736.79
  6. Step 6: Final answer
    x = 78,646.28

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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.