Home / 103,966.12-143,473.25-56,219.47

Finding the Fourth Proportional to 103,966.12, 143,473.25 and 56,219.47

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Solution

The fourth proportional to 103,966.12, 143,473.25 and 56,219.47 is: 77,582.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,966.12 : 143,473.25 = 56,219.47 : x
  2. Step 2: Convert to fraction form
    103,966.12/143,473.25 = 56,219.47/x
  3. Step 3: Cross multiply
    103,966.12x = 143,473.25 × 56,219.47
  4. Step 4: Simplify right side
    103,966.12x = 8,065,989,434.40
  5. Step 5: Solve for x
    x = 8,065,989,434.40/103,966.12
  6. Step 6: Final answer
    x = 77,582.87

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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.