Home / 103,853.05-143,317.28-56,106.38

Finding the Fourth Proportional to 103,853.05, 143,317.28 and 56,106.38

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Solution

The fourth proportional to 103,853.05, 143,317.28 and 56,106.38 is: 77,426.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,853.05 : 143,317.28 = 56,106.38 : x
  2. Step 2: Convert to fraction form
    103,853.05/143,317.28 = 56,106.38/x
  3. Step 3: Cross multiply
    103,853.05x = 143,317.28 × 56,106.38
  4. Step 4: Simplify right side
    103,853.05x = 8,041,013,772.25
  5. Step 5: Solve for x
    x = 8,041,013,772.25/103,853.05
  6. Step 6: Final answer
    x = 77,426.84

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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.