Home / 103,966.86-143,474.28-56,220.21

Finding the Fourth Proportional to 103,966.86, 143,474.28 and 56,220.21

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Solution

The fourth proportional to 103,966.86, 143,474.28 and 56,220.21 is: 77,583.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,966.86 : 143,474.28 = 56,220.21 : x
  2. Step 2: Convert to fraction form
    103,966.86/143,474.28 = 56,220.21/x
  3. Step 3: Cross multiply
    103,966.86x = 143,474.28 × 56,220.21
  4. Step 4: Simplify right side
    103,966.86x = 8,066,154,151.20
  5. Step 5: Solve for x
    x = 8,066,154,151.20/103,966.86
  6. Step 6: Final answer
    x = 77,583.90

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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.