Home / 103,946.31-143,446.12-56,199.66

Finding the Fourth Proportional to 103,946.31, 143,446.12 and 56,199.66

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Solution

The fourth proportional to 103,946.31, 143,446.12 and 56,199.66 is: 77,555.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,946.31 : 143,446.12 = 56,199.66 : x
  2. Step 2: Convert to fraction form
    103,946.31/143,446.12 = 56,199.66/x
  3. Step 3: Cross multiply
    103,946.31x = 143,446.12 × 56,199.66
  4. Step 4: Simplify right side
    103,946.31x = 8,061,623,031.82
  5. Step 5: Solve for x
    x = 8,061,623,031.82/103,946.31
  6. Step 6: Final answer
    x = 77,555.64

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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.