Home / 103,811.16-143,259.39-56,064.51

Finding the Fourth Proportional to 103,811.16, 143,259.39 and 56,064.51

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Solution

The fourth proportional to 103,811.16, 143,259.39 and 56,064.51 is: 77,369.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,811.16 : 143,259.39 = 56,064.51 : x
  2. Step 2: Convert to fraction form
    103,811.16/143,259.39 = 56,064.51/x
  3. Step 3: Cross multiply
    103,811.16x = 143,259.39 × 56,064.51
  4. Step 4: Simplify right side
    103,811.16x = 8,031,767,503.25
  5. Step 5: Solve for x
    x = 8,031,767,503.25/103,811.16
  6. Step 6: Final answer
    x = 77,369.02

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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.