Home / 103,964.48-143,470.88-56,217.76

Finding the Fourth Proportional to 103,964.48, 143,470.88 and 56,217.76

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Solution

The fourth proportional to 103,964.48, 143,470.88 and 56,217.76 is: 77,580.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,964.48 : 143,470.88 = 56,217.76 : x
  2. Step 2: Convert to fraction form
    103,964.48/143,470.88 = 56,217.76/x
  3. Step 3: Cross multiply
    103,964.48x = 143,470.88 × 56,217.76
  4. Step 4: Simplify right side
    103,964.48x = 8,065,611,498.83
  5. Step 5: Solve for x
    x = 8,065,611,498.83/103,964.48
  6. Step 6: Final answer
    x = 77,580.45

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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.